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Finding the Fourth Proportional to 13,529.52, 20,304 and 8,339.04

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Solution

The fourth proportional to 13,529.52, 20,304 and 8,339.04 is: 12,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.52 : 20,304 = 8,339.04 : x
  2. Step 2: Convert to fraction form
    13,529.52/20,304 = 8,339.04/x
  3. Step 3: Cross multiply
    13,529.52x = 20,304 × 8,339.04
  4. Step 4: Simplify right side
    13,529.52x = 169,315,868.16
  5. Step 5: Solve for x
    x = 169,315,868.16/13,529.52
  6. Step 6: Final answer
    x = 12,514.55

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Why These Related Problems?

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