Home / 8,378.43-12,562.83-3,451.47

Finding the Fourth Proportional to 8,378.43, 12,562.83 and 3,451.47

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Solution

The fourth proportional to 8,378.43, 12,562.83 and 3,451.47 is: 5,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378.43 : 12,562.83 = 3,451.47 : x
  2. Step 2: Convert to fraction form
    8,378.43/12,562.83 = 3,451.47/x
  3. Step 3: Cross multiply
    8,378.43x = 12,562.83 × 3,451.47
  4. Step 4: Simplify right side
    8,378.43x = 43,360,230.86
  5. Step 5: Solve for x
    x = 43,360,230.86/8,378.43
  6. Step 6: Final answer
    x = 5,175.22

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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.