How to Find an Unknown in a Proportion

Instructions:

question 1 of 3

Which of the following is NOT a recognized way to write a ratio?

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2. Solve the proportion for the unknown x: 25 / 15 = 125 / x

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Use the worksheet and quiz to determine what you know about finding unknowns in proportions. Specific topics you'll need to understand include how to calculate a proportion with an unknown and how to recognize proportions which are correctly set up.

Quiz & Worksheet Goals

The quiz will test you on:

• Solving proportions for the unknown x
• Finding the proportion of 5/22 = 6/x
• Calculating the ratio of butter needed in a given recipe

Skills Practiced

These study skills will be practiced:

• Reading comprehension - ensure that you draw the most important information from the related lesson on finding unknowns in proportions
• Problem solving - use acquired knowledge to solve proportion practice problems
• Information recall - access the knowledge you've gained regarding recognized ways to write a ratio

Use the lesson called How to Find an Unknown in a Proportion to explore this subject further. The lesson covers the following objectives:

• Define ratio
• Understand what a proportion is
• Apply calculations for proportions
• Learn how to check results of calculations
Final Exam
Chapter Exam

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