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Finding the Third Proportional to 8,487 and 18,069

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Solution

The third proportional to 8,487 and 18,069 is: 38,469.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487 : 18,069 = 18,069 : x
  2. Step 2: Convert to fraction form
    8,487/18,069 = 18,069/x
  3. Step 3: Cross multiply
    8,487x = 18,069 × 18,069
  4. Step 4: Simplify right side
    8,487x = 326,488,761
  5. Step 5: Solve for x
    x = 326,488,761/8,487
  6. Step 6: Final answer
    x = 38,469.28

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.