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Finding the Fourth Proportional to 18,255.97, 27,372.51 and 8,382.58

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Solution

The fourth proportional to 18,255.97, 27,372.51 and 8,382.58 is: 12,568.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.97 : 27,372.51 = 8,382.58 : x
  2. Step 2: Convert to fraction form
    18,255.97/27,372.51 = 8,382.58/x
  3. Step 3: Cross multiply
    18,255.97x = 27,372.51 × 8,382.58
  4. Step 4: Simplify right side
    18,255.97x = 229,452,254.88
  5. Step 5: Solve for x
    x = 229,452,254.88/18,255.97
  6. Step 6: Final answer
    x = 12,568.61

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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.