Home / 8,160.20-12,242.16-2,613.92

Finding the Fourth Proportional to 8,160.20, 12,242.16 and 2,613.92

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Solution

The fourth proportional to 8,160.20, 12,242.16 and 2,613.92 is: 3,921.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.20 : 12,242.16 = 2,613.92 : x
  2. Step 2: Convert to fraction form
    8,160.20/12,242.16 = 2,613.92/x
  3. Step 3: Cross multiply
    8,160.20x = 12,242.16 × 2,613.92
  4. Step 4: Simplify right side
    8,160.20x = 32,000,026.87
  5. Step 5: Solve for x
    x = 32,000,026.87/8,160.20
  6. Step 6: Final answer
    x = 3,921.48

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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.