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Finding the Third Proportional to 6,638 and 14,422

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Solution

The third proportional to 6,638 and 14,422 is: 31,333.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638 : 14,422 = 14,422 : x
  2. Step 2: Convert to fraction form
    6,638/14,422 = 14,422/x
  3. Step 3: Cross multiply
    6,638x = 14,422 × 14,422
  4. Step 4: Simplify right side
    6,638x = 207,994,084
  5. Step 5: Solve for x
    x = 207,994,084/6,638
  6. Step 6: Final answer
    x = 31,333.85

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.