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Finding the Third Proportional to 10,666.13 and 16,455.38

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Solution

The third proportional to 10,666.13 and 16,455.38 is: 25,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,666.13 : 16,455.38 = 16,455.38 : x
  2. Step 2: Convert to fraction form
    10,666.13/16,455.38 = 16,455.38/x
  3. Step 3: Cross multiply
    10,666.13x = 16,455.38 × 16,455.38
  4. Step 4: Simplify right side
    10,666.13x = 270,779,366.39
  5. Step 5: Solve for x
    x = 270,779,366.39/10,666.13
  6. Step 6: Final answer
    x = 25,386.85

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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.