Solving Proportions

These worksheets help 6th and 7th graders practice solving proportions by finding missing values in ratio relationships. They're ideal for building fluency with proportional reasoning.

How to Solve Ratios & Proportions

Find the scale factor by determining how the known parts of the proportion changed. In 3:4 = x:12, since 4 became 12 (multiply by 3), apply that same factor to 3 to get x = 9. Cross-multiplication also works: solve 3 × 12 = 4x to find x = 9.

You can view the preview of this worksheet below, or download the full high-resolution PDF along with the answer key for easy grading.