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Finding the Fourth Proportional to 13,632, 20,448 and 4,398

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Solution

The fourth proportional to 13,632, 20,448 and 4,398 is: 6,597

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632 : 20,448 = 4,398 : x
  2. Step 2: Convert to fraction form
    13,632/20,448 = 4,398/x
  3. Step 3: Cross multiply
    13,632x = 20,448 × 4,398
  4. Step 4: Simplify right side
    13,632x = 89,930,304
  5. Step 5: Solve for x
    x = 89,930,304/13,632
  6. Step 6: Final answer
    x = 6,597

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.