Home / 8,325.20-12,489.42-2,481.68

Finding the Fourth Proportional to 8,325.20, 12,489.42 and 2,481.68

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Solution

The fourth proportional to 8,325.20, 12,489.42 and 2,481.68 is: 3,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.20 : 12,489.42 = 2,481.68 : x
  2. Step 2: Convert to fraction form
    8,325.20/12,489.42 = 2,481.68/x
  3. Step 3: Cross multiply
    8,325.20x = 12,489.42 × 2,481.68
  4. Step 4: Simplify right side
    8,325.20x = 30,994,743.83
  5. Step 5: Solve for x
    x = 30,994,743.83/8,325.20
  6. Step 6: Final answer
    x = 3,723.00

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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.