Home / 15,251.20-22,876.80-5,390.80

Finding the Fourth Proportional to 15,251.20, 22,876.80 and 5,390.80

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Solution

The fourth proportional to 15,251.20, 22,876.80 and 5,390.80 is: 8,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.20 : 22,876.80 = 5,390.80 : x
  2. Step 2: Convert to fraction form
    15,251.20/22,876.80 = 5,390.80/x
  3. Step 3: Cross multiply
    15,251.20x = 22,876.80 × 5,390.80
  4. Step 4: Simplify right side
    15,251.20x = 123,324,253.44
  5. Step 5: Solve for x
    x = 123,324,253.44/15,251.20
  6. Step 6: Final answer
    x = 8,086.20

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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.