Finding the Third Proportional to 6 and 9
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Solution
The third proportional to 6 and 9 is: 13.50
Step by Step Solution
- Step 1: Write the proportion equation
6 : 9 = 9 : x - Step 2: Convert to fraction form
6/9 = 9/x - Step 3: Cross multiply
6x = 9 × 9 - Step 4: Simplify right side
6x = 81 - Step 5: Solve for x
x = 81/6 - Step 6: Final answer
x = 13.50
Related Problems
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.