Home / 8,380.43-12,565.83-3,453.47

Finding the Fourth Proportional to 8,380.43, 12,565.83 and 3,453.47

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Solution

The fourth proportional to 8,380.43, 12,565.83 and 3,453.47 is: 5,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.43 : 12,565.83 = 3,453.47 : x
  2. Step 2: Convert to fraction form
    8,380.43/12,565.83 = 3,453.47/x
  3. Step 3: Cross multiply
    8,380.43x = 12,565.83 × 3,453.47
  4. Step 4: Simplify right side
    8,380.43x = 43,395,716.93
  5. Step 5: Solve for x
    x = 43,395,716.93/8,380.43
  6. Step 6: Final answer
    x = 5,178.22

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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.