Finding the Third Proportional to 7,720.13 and 15,713.63
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Solution
The third proportional to 7,720.13 and 15,713.63 is: 31,983.68
Step by Step Solution
- Step 1: Write the proportion equation
7,720.13 : 15,713.63 = 15,713.63 : x - Step 2: Convert to fraction form
7,720.13/15,713.63 = 15,713.63/x - Step 3: Cross multiply
7,720.13x = 15,713.63 × 15,713.63 - Step 4: Simplify right side
7,720.13x = 246,918,010.64 - Step 5: Solve for x
x = 246,918,010.64/7,720.13 - Step 6: Final answer
x = 31,983.68
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Why These Related Problems?
These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.