Home / 13,591.93-20,385.70-3,728.90

Finding the Fourth Proportional to 13,591.93, 20,385.70 and 3,728.90

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Solution

The fourth proportional to 13,591.93, 20,385.70 and 3,728.90 is: 5,592.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.93 : 20,385.70 = 3,728.90 : x
  2. Step 2: Convert to fraction form
    13,591.93/20,385.70 = 3,728.90/x
  3. Step 3: Cross multiply
    13,591.93x = 20,385.70 × 3,728.90
  4. Step 4: Simplify right side
    13,591.93x = 76,016,236.73
  5. Step 5: Solve for x
    x = 76,016,236.73/13,591.93
  6. Step 6: Final answer
    x = 5,592.75

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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.