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Finding the Fourth Proportional to 13,825.14, 20,737.71 and 4,591.14

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Solution

The fourth proportional to 13,825.14, 20,737.71 and 4,591.14 is: 6,886.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.14 : 20,737.71 = 4,591.14 : x
  2. Step 2: Convert to fraction form
    13,825.14/20,737.71 = 4,591.14/x
  3. Step 3: Cross multiply
    13,825.14x = 20,737.71 × 4,591.14
  4. Step 4: Simplify right side
    13,825.14x = 95,209,729.89
  5. Step 5: Solve for x
    x = 95,209,729.89/13,825.14
  6. Step 6: Final answer
    x = 6,886.71

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1.5x scale

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.