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Finding the Third Proportional to 8,879 and 13,481

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Solution

The third proportional to 8,879 and 13,481 is: 20,468.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879 : 13,481 = 13,481 : x
  2. Step 2: Convert to fraction form
    8,879/13,481 = 13,481/x
  3. Step 3: Cross multiply
    8,879x = 13,481 × 13,481
  4. Step 4: Simplify right side
    8,879x = 181,737,361
  5. Step 5: Solve for x
    x = 181,737,361/8,879
  6. Step 6: Final answer
    x = 20,468.22

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.