Home / 8,148.12-12,221.92-2,601.76

Finding the Fourth Proportional to 8,148.12, 12,221.92 and 2,601.76

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Solution

The fourth proportional to 8,148.12, 12,221.92 and 2,601.76 is: 3,902.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.12 : 12,221.92 = 2,601.76 : x
  2. Step 2: Convert to fraction form
    8,148.12/12,221.92 = 2,601.76/x
  3. Step 3: Cross multiply
    8,148.12x = 12,221.92 × 2,601.76
  4. Step 4: Simplify right side
    8,148.12x = 31,798,502.58
  5. Step 5: Solve for x
    x = 31,798,502.58/8,148.12
  6. Step 6: Final answer
    x = 3,902.56

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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.