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Finding the Fourth Proportional to 8,388.95, 12,572.48 and 3,453.62

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Solution

The fourth proportional to 8,388.95, 12,572.48 and 3,453.62 is: 5,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.95 : 12,572.48 = 3,453.62 : x
  2. Step 2: Convert to fraction form
    8,388.95/12,572.48 = 3,453.62/x
  3. Step 3: Cross multiply
    8,388.95x = 12,572.48 × 3,453.62
  4. Step 4: Simplify right side
    8,388.95x = 43,420,505.52
  5. Step 5: Solve for x
    x = 43,420,505.52/8,388.95
  6. Step 6: Final answer
    x = 5,175.92

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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.