Finding the Third Proportional to 7,854.68 and 16,939.48
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Solution
The third proportional to 7,854.68 and 16,939.48 is: 36,531.84
Step by Step Solution
- Step 1: Write the proportion equation
7,854.68 : 16,939.48 = 16,939.48 : x - Step 2: Convert to fraction form
7,854.68/16,939.48 = 16,939.48/x - Step 3: Cross multiply
7,854.68x = 16,939.48 × 16,939.48 - Step 4: Simplify right side
7,854.68x = 286,945,866.21 - Step 5: Solve for x
x = 286,945,866.21/7,854.68 - Step 6: Final answer
x = 36,531.84
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.