Home / 8,240.38-12,339.24-7,491.16

Finding the Fourth Proportional to 8,240.38, 12,339.24 and 7,491.16

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Solution

The fourth proportional to 8,240.38, 12,339.24 and 7,491.16 is: 11,217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.38 : 12,339.24 = 7,491.16 : x
  2. Step 2: Convert to fraction form
    8,240.38/12,339.24 = 7,491.16/x
  3. Step 3: Cross multiply
    8,240.38x = 12,339.24 × 7,491.16
  4. Step 4: Simplify right side
    8,240.38x = 92,435,221.12
  5. Step 5: Solve for x
    x = 92,435,221.12/8,240.38
  6. Step 6: Final answer
    x = 11,217.35

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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.