Home / 18,419.08-27,617.10-12,255.88

Finding the Fourth Proportional to 18,419.08, 27,617.10 and 12,255.88

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Solution

The fourth proportional to 18,419.08, 27,617.10 and 12,255.88 is: 18,376.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.08 : 27,617.10 = 12,255.88 : x
  2. Step 2: Convert to fraction form
    18,419.08/27,617.10 = 12,255.88/x
  3. Step 3: Cross multiply
    18,419.08x = 27,617.10 × 12,255.88
  4. Step 4: Simplify right side
    18,419.08x = 338,471,863.55
  5. Step 5: Solve for x
    x = 338,471,863.55/18,419.08
  6. Step 6: Final answer
    x = 18,376.15

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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.