Home / 12,481.08-18,630.20-11,004.88

Finding the Fourth Proportional to 12,481.08, 18,630.20 and 11,004.88

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Solution

The fourth proportional to 12,481.08, 18,630.20 and 11,004.88 is: 16,426.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.08 : 18,630.20 = 11,004.88 : x
  2. Step 2: Convert to fraction form
    12,481.08/18,630.20 = 11,004.88/x
  3. Step 3: Cross multiply
    12,481.08x = 18,630.20 × 11,004.88
  4. Step 4: Simplify right side
    12,481.08x = 205,023,115.38
  5. Step 5: Solve for x
    x = 205,023,115.38/12,481.08
  6. Step 6: Final answer
    x = 16,426.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.