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Finding the Third Proportional to 8,639 and 17,893

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Solution

The third proportional to 8,639 and 17,893 is: 37,059.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639 : 17,893 = 17,893 : x
  2. Step 2: Convert to fraction form
    8,639/17,893 = 17,893/x
  3. Step 3: Cross multiply
    8,639x = 17,893 × 17,893
  4. Step 4: Simplify right side
    8,639x = 320,159,449
  5. Step 5: Solve for x
    x = 320,159,449/8,639
  6. Step 6: Final answer
    x = 37,059.78

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.