Home / 13,591.40-20,387.10-3,732.20

Finding the Fourth Proportional to 13,591.40, 20,387.10 and 3,732.20

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Solution

The fourth proportional to 13,591.40, 20,387.10 and 3,732.20 is: 5,598.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.40 : 20,387.10 = 3,732.20 : x
  2. Step 2: Convert to fraction form
    13,591.40/20,387.10 = 3,732.20/x
  3. Step 3: Cross multiply
    13,591.40x = 20,387.10 × 3,732.20
  4. Step 4: Simplify right side
    13,591.40x = 76,088,734.62
  5. Step 5: Solve for x
    x = 76,088,734.62/13,591.40
  6. Step 6: Final answer
    x = 5,598.30

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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.