Home / 12,481.11-17,230.85-8,508.06

Finding the Fourth Proportional to 12,481.11, 17,230.85 and 8,508.06

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Solution

The fourth proportional to 12,481.11, 17,230.85 and 8,508.06 is: 11,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.11 : 17,230.85 = 8,508.06 : x
  2. Step 2: Convert to fraction form
    12,481.11/17,230.85 = 8,508.06/x
  3. Step 3: Cross multiply
    12,481.11x = 17,230.85 × 8,508.06
  4. Step 4: Simplify right side
    12,481.11x = 146,601,105.65
  5. Step 5: Solve for x
    x = 146,601,105.65/12,481.11
  6. Step 6: Final answer
    x = 11,745.84

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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.