Home / 15,108.14-20,848.17-8,729.73

Finding the Fourth Proportional to 15,108.14, 20,848.17 and 8,729.73

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Solution

The fourth proportional to 15,108.14, 20,848.17 and 8,729.73 is: 12,046.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108.14 : 20,848.17 = 8,729.73 : x
  2. Step 2: Convert to fraction form
    15,108.14/20,848.17 = 8,729.73/x
  3. Step 3: Cross multiply
    15,108.14x = 20,848.17 × 8,729.73
  4. Step 4: Simplify right side
    15,108.14x = 181,998,790.85
  5. Step 5: Solve for x
    x = 181,998,790.85/15,108.14
  6. Step 6: Final answer
    x = 12,046.41

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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.