Home / 13,519.76-20,251.39-10,872.95

Finding the Fourth Proportional to 13,519.76, 20,251.39 and 10,872.95

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Solution

The fourth proportional to 13,519.76, 20,251.39 and 10,872.95 is: 16,286.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.76 : 20,251.39 = 10,872.95 : x
  2. Step 2: Convert to fraction form
    13,519.76/20,251.39 = 10,872.95/x
  3. Step 3: Cross multiply
    13,519.76x = 20,251.39 × 10,872.95
  4. Step 4: Simplify right side
    13,519.76x = 220,192,350.90
  5. Step 5: Solve for x
    x = 220,192,350.90/13,519.76
  6. Step 6: Final answer
    x = 16,286.71

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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.