Home / 8,132.10-12,193.20-3,195.78

Finding the Fourth Proportional to 8,132.10, 12,193.20 and 3,195.78

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Solution

The fourth proportional to 8,132.10, 12,193.20 and 3,195.78 is: 4,791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.10 : 12,193.20 = 3,195.78 : x
  2. Step 2: Convert to fraction form
    8,132.10/12,193.20 = 3,195.78/x
  3. Step 3: Cross multiply
    8,132.10x = 12,193.20 × 3,195.78
  4. Step 4: Simplify right side
    8,132.10x = 38,966,784.70
  5. Step 5: Solve for x
    x = 38,966,784.70/8,132.10
  6. Step 6: Final answer
    x = 4,791.72

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1.5x scale

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.