Home / 12,191.97-18,277.88-5,612.61

Finding the Fourth Proportional to 12,191.97, 18,277.88 and 5,612.61

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Solution

The fourth proportional to 12,191.97, 18,277.88 and 5,612.61 is: 8,414.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.97 : 18,277.88 = 5,612.61 : x
  2. Step 2: Convert to fraction form
    12,191.97/18,277.88 = 5,612.61/x
  3. Step 3: Cross multiply
    12,191.97x = 18,277.88 × 5,612.61
  4. Step 4: Simplify right side
    12,191.97x = 102,586,584.00
  5. Step 5: Solve for x
    x = 102,586,584.00/12,191.97
  6. Step 6: Final answer
    x = 8,414.27

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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.