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Finding the Third Proportional to 4,387 and 8,882

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Solution

The third proportional to 4,387 and 8,882 is: 17,982.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,387 : 8,882 = 8,882 : x
  2. Step 2: Convert to fraction form
    4,387/8,882 = 8,882/x
  3. Step 3: Cross multiply
    4,387x = 8,882 × 8,882
  4. Step 4: Simplify right side
    4,387x = 78,889,924
  5. Step 5: Solve for x
    x = 78,889,924/4,387
  6. Step 6: Final answer
    x = 17,982.66

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Why These Related Problems?

These problems maintain the same ratio (2.02) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.