Home / 10,278.71-15,422.77-5,591.70

Finding the Fourth Proportional to 10,278.71, 15,422.77 and 5,591.70

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Solution

The fourth proportional to 10,278.71, 15,422.77 and 5,591.70 is: 8,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.71 : 15,422.77 = 5,591.70 : x
  2. Step 2: Convert to fraction form
    10,278.71/15,422.77 = 5,591.70/x
  3. Step 3: Cross multiply
    10,278.71x = 15,422.77 × 5,591.70
  4. Step 4: Simplify right side
    10,278.71x = 86,239,510.00
  5. Step 5: Solve for x
    x = 86,239,510.00/10,278.71
  6. Step 6: Final answer
    x = 8,390.11

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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.