Home / 11,234.24-15,493.92-8,434.88

Finding the Fourth Proportional to 11,234.24, 15,493.92 and 8,434.88

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Solution

The fourth proportional to 11,234.24, 15,493.92 and 8,434.88 is: 11,633.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,234.24 : 15,493.92 = 8,434.88 : x
  2. Step 2: Convert to fraction form
    11,234.24/15,493.92 = 8,434.88/x
  3. Step 3: Cross multiply
    11,234.24x = 15,493.92 × 8,434.88
  4. Step 4: Simplify right side
    11,234.24x = 130,689,355.93
  5. Step 5: Solve for x
    x = 130,689,355.93/11,234.24
  6. Step 6: Final answer
    x = 11,633.13

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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.