Home / 8,263.28-12,399.17-5,491.86

Finding the Fourth Proportional to 8,263.28, 12,399.17 and 5,491.86

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Solution

The fourth proportional to 8,263.28, 12,399.17 and 5,491.86 is: 8,240.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,263.28 : 12,399.17 = 5,491.86 : x
  2. Step 2: Convert to fraction form
    8,263.28/12,399.17 = 5,491.86/x
  3. Step 3: Cross multiply
    8,263.28x = 12,399.17 × 5,491.86
  4. Step 4: Simplify right side
    8,263.28x = 68,094,505.76
  5. Step 5: Solve for x
    x = 68,094,505.76/8,263.28
  6. Step 6: Final answer
    x = 8,240.61

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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.