Home / 8,885.68-12,261.18-5,108.92

Finding the Fourth Proportional to 8,885.68, 12,261.18 and 5,108.92

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Solution

The fourth proportional to 8,885.68, 12,261.18 and 5,108.92 is: 7,049.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.68 : 12,261.18 = 5,108.92 : x
  2. Step 2: Convert to fraction form
    8,885.68/12,261.18 = 5,108.92/x
  3. Step 3: Cross multiply
    8,885.68x = 12,261.18 × 5,108.92
  4. Step 4: Simplify right side
    8,885.68x = 62,641,387.73
  5. Step 5: Solve for x
    x = 62,641,387.73/8,885.68
  6. Step 6: Final answer
    x = 7,049.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.