Home / 10,278.97-15,423.15-5,591.95

Finding the Fourth Proportional to 10,278.97, 15,423.15 and 5,591.95

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Solution

The fourth proportional to 10,278.97, 15,423.15 and 5,591.95 is: 8,390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.97 : 15,423.15 = 5,591.95 : x
  2. Step 2: Convert to fraction form
    10,278.97/15,423.15 = 5,591.95/x
  3. Step 3: Cross multiply
    10,278.97x = 15,423.15 × 5,591.95
  4. Step 4: Simplify right side
    10,278.97x = 86,245,469.66
  5. Step 5: Solve for x
    x = 86,245,469.66/10,278.97
  6. Step 6: Final answer
    x = 8,390.48

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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.