Home / 11,236.92-15,489.90-8,091.96

Finding the Fourth Proportional to 11,236.92, 15,489.90 and 8,091.96

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Solution

The fourth proportional to 11,236.92, 15,489.90 and 8,091.96 is: 11,154.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.92 : 15,489.90 = 8,091.96 : x
  2. Step 2: Convert to fraction form
    11,236.92/15,489.90 = 8,091.96/x
  3. Step 3: Cross multiply
    11,236.92x = 15,489.90 × 8,091.96
  4. Step 4: Simplify right side
    11,236.92x = 125,343,651.20
  5. Step 5: Solve for x
    x = 125,343,651.20/11,236.92
  6. Step 6: Final answer
    x = 11,154.63

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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.