Home / 8,127.90-12,191.85-2,932.56

Finding the Fourth Proportional to 8,127.90, 12,191.85 and 2,932.56

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Solution

The fourth proportional to 8,127.90, 12,191.85 and 2,932.56 is: 4,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.90 : 12,191.85 = 2,932.56 : x
  2. Step 2: Convert to fraction form
    8,127.90/12,191.85 = 2,932.56/x
  3. Step 3: Cross multiply
    8,127.90x = 12,191.85 × 2,932.56
  4. Step 4: Simplify right side
    8,127.90x = 35,753,331.64
  5. Step 5: Solve for x
    x = 35,753,331.64/8,127.90
  6. Step 6: Final answer
    x = 4,398.84

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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.