Home / 8,125.16-12,187.20-3,195.66

Finding the Fourth Proportional to 8,125.16, 12,187.20 and 3,195.66

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Solution

The fourth proportional to 8,125.16, 12,187.20 and 3,195.66 is: 4,793.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.16 : 12,187.20 = 3,195.66 : x
  2. Step 2: Convert to fraction form
    8,125.16/12,187.20 = 3,195.66/x
  3. Step 3: Cross multiply
    8,125.16x = 12,187.20 × 3,195.66
  4. Step 4: Simplify right side
    8,125.16x = 38,946,147.55
  5. Step 5: Solve for x
    x = 38,946,147.55/8,125.16
  6. Step 6: Final answer
    x = 4,793.28

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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.