Home / 8,380.39-12,559.24-3,183.43

Finding the Fourth Proportional to 8,380.39, 12,559.24 and 3,183.43

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Solution

The fourth proportional to 8,380.39, 12,559.24 and 3,183.43 is: 4,770.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.39 : 12,559.24 = 3,183.43 : x
  2. Step 2: Convert to fraction form
    8,380.39/12,559.24 = 3,183.43/x
  3. Step 3: Cross multiply
    8,380.39x = 12,559.24 × 3,183.43
  4. Step 4: Simplify right side
    8,380.39x = 39,981,461.39
  5. Step 5: Solve for x
    x = 39,981,461.39/8,380.39
  6. Step 6: Final answer
    x = 4,770.84

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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.