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Finding the Third Proportional to 6,939 and 10,666.13

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Solution

The third proportional to 6,939 and 10,666.13 is: 16,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939 : 10,666.13 = 10,666.13 : x
  2. Step 2: Convert to fraction form
    6,939/10,666.13 = 10,666.13/x
  3. Step 3: Cross multiply
    6,939x = 10,666.13 × 10,666.13
  4. Step 4: Simplify right side
    6,939x = 113,766,222.52
  5. Step 5: Solve for x
    x = 113,766,222.52/6,939
  6. Step 6: Final answer
    x = 16,395.19

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.