Home / 18,375.12-25,328.16-12,404.88

Finding the Fourth Proportional to 18,375.12, 25,328.16 and 12,404.88

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Solution

The fourth proportional to 18,375.12, 25,328.16 and 12,404.88 is: 17,098.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.12 : 25,328.16 = 12,404.88 : x
  2. Step 2: Convert to fraction form
    18,375.12/25,328.16 = 12,404.88/x
  3. Step 3: Cross multiply
    18,375.12x = 25,328.16 × 12,404.88
  4. Step 4: Simplify right side
    18,375.12x = 314,192,785.42
  5. Step 5: Solve for x
    x = 314,192,785.42/18,375.12
  6. Step 6: Final answer
    x = 17,098.82

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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.