Home / 12,152.97-18,229.59-3,387.96

Finding the Fourth Proportional to 12,152.97, 18,229.59 and 3,387.96

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Solution

The fourth proportional to 12,152.97, 18,229.59 and 3,387.96 is: 5,081.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.97 : 18,229.59 = 3,387.96 : x
  2. Step 2: Convert to fraction form
    12,152.97/18,229.59 = 3,387.96/x
  3. Step 3: Cross multiply
    12,152.97x = 18,229.59 × 3,387.96
  4. Step 4: Simplify right side
    12,152.97x = 61,761,121.74
  5. Step 5: Solve for x
    x = 61,761,121.74/12,152.97
  6. Step 6: Final answer
    x = 5,081.98

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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.