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Finding the Fourth Proportional to 18,613.08, 27,926.10 and 8,759.88

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Solution

The fourth proportional to 18,613.08, 27,926.10 and 8,759.88 is: 13,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.08 : 27,926.10 = 8,759.88 : x
  2. Step 2: Convert to fraction form
    18,613.08/27,926.10 = 8,759.88/x
  3. Step 3: Cross multiply
    18,613.08x = 27,926.10 × 8,759.88
  4. Step 4: Simplify right side
    18,613.08x = 244,629,284.87
  5. Step 5: Solve for x
    x = 244,629,284.87/18,613.08
  6. Step 6: Final answer
    x = 13,142.87

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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.