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Finding the Third Proportional to 7,400 and 15,839

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Solution

The third proportional to 7,400 and 15,839 is: 33,901.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400 : 15,839 = 15,839 : x
  2. Step 2: Convert to fraction form
    7,400/15,839 = 15,839/x
  3. Step 3: Cross multiply
    7,400x = 15,839 × 15,839
  4. Step 4: Simplify right side
    7,400x = 250,873,921
  5. Step 5: Solve for x
    x = 250,873,921/7,400
  6. Step 6: Final answer
    x = 33,901.88

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.