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Finding the Third Proportional to 3,987 and 9,441

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Solution

The third proportional to 3,987 and 9,441 is: 22,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987 : 9,441 = 9,441 : x
  2. Step 2: Convert to fraction form
    3,987/9,441 = 9,441/x
  3. Step 3: Cross multiply
    3,987x = 9,441 × 9,441
  4. Step 4: Simplify right side
    3,987x = 89,132,481
  5. Step 5: Solve for x
    x = 89,132,481/3,987
  6. Step 6: Final answer
    x = 22,355.78

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.