Home / 8,099.20-12,132.60-5,474.80

Finding the Fourth Proportional to 8,099.20, 12,132.60 and 5,474.80

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Solution

The fourth proportional to 8,099.20, 12,132.60 and 5,474.80 is: 8,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.20 : 12,132.60 = 5,474.80 : x
  2. Step 2: Convert to fraction form
    8,099.20/12,132.60 = 5,474.80/x
  3. Step 3: Cross multiply
    8,099.20x = 12,132.60 × 5,474.80
  4. Step 4: Simplify right side
    8,099.20x = 66,423,558.48
  5. Step 5: Solve for x
    x = 66,423,558.48/8,099.20
  6. Step 6: Final answer
    x = 8,201.25

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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.