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Finding the Fourth Proportional to 14,773.62, 20,391.84 and 8,729.46

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Solution

The fourth proportional to 14,773.62, 20,391.84 and 8,729.46 is: 12,049.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,773.62 : 20,391.84 = 8,729.46 : x
  2. Step 2: Convert to fraction form
    14,773.62/20,391.84 = 8,729.46/x
  3. Step 3: Cross multiply
    14,773.62x = 20,391.84 × 8,729.46
  4. Step 4: Simplify right side
    14,773.62x = 178,009,751.61
  5. Step 5: Solve for x
    x = 178,009,751.61/14,773.62
  6. Step 6: Final answer
    x = 12,049.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.