Home / 11,906.40-17,867.84-4,115.22

Finding the Fourth Proportional to 11,906.40, 17,867.84 and 4,115.22

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Solution

The fourth proportional to 11,906.40, 17,867.84 and 4,115.22 is: 6,175.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,906.40 : 17,867.84 = 4,115.22 : x
  2. Step 2: Convert to fraction form
    11,906.40/17,867.84 = 4,115.22/x
  3. Step 3: Cross multiply
    11,906.40x = 17,867.84 × 4,115.22
  4. Step 4: Simplify right side
    11,906.40x = 73,530,092.52
  5. Step 5: Solve for x
    x = 73,530,092.52/11,906.40
  6. Step 6: Final answer
    x = 6,175.68

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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.