Home / 11,234.97-16,867.04-8,639.73

Finding the Fourth Proportional to 11,234.97, 16,867.04 and 8,639.73

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Solution

The fourth proportional to 11,234.97, 16,867.04 and 8,639.73 is: 12,970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,234.97 : 16,867.04 = 8,639.73 : x
  2. Step 2: Convert to fraction form
    11,234.97/16,867.04 = 8,639.73/x
  3. Step 3: Cross multiply
    11,234.97x = 16,867.04 × 8,639.73
  4. Step 4: Simplify right side
    11,234.97x = 145,726,628.30
  5. Step 5: Solve for x
    x = 145,726,628.30/11,234.97
  6. Step 6: Final answer
    x = 12,970.81

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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.