Home / 8,115.24-12,175.02-3,432.90

Finding the Fourth Proportional to 8,115.24, 12,175.02 and 3,432.90

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Solution

The fourth proportional to 8,115.24, 12,175.02 and 3,432.90 is: 5,150.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.24 : 12,175.02 = 3,432.90 : x
  2. Step 2: Convert to fraction form
    8,115.24/12,175.02 = 3,432.90/x
  3. Step 3: Cross multiply
    8,115.24x = 12,175.02 × 3,432.90
  4. Step 4: Simplify right side
    8,115.24x = 41,795,626.16
  5. Step 5: Solve for x
    x = 41,795,626.16/8,115.24
  6. Step 6: Final answer
    x = 5,150.26

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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.