Finding the Third Proportional to 8,731.13 and 18,919.13
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Solution
The third proportional to 8,731.13 and 18,919.13 is: 40,995.09
Step by Step Solution
- Step 1: Write the proportion equation
8,731.13 : 18,919.13 = 18,919.13 : x - Step 2: Convert to fraction form
8,731.13/18,919.13 = 18,919.13/x - Step 3: Cross multiply
8,731.13x = 18,919.13 × 18,919.13 - Step 4: Simplify right side
8,731.13x = 357,933,290.77 - Step 5: Solve for x
x = 357,933,290.77/8,731.13 - Step 6: Final answer
x = 40,995.09
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Why These Related Problems?
These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.