Home / 11,057.68-15,279.03-8,837.87

Finding the Fourth Proportional to 11,057.68, 15,279.03 and 8,837.87

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Solution

The fourth proportional to 11,057.68, 15,279.03 and 8,837.87 is: 12,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,057.68 : 15,279.03 = 8,837.87 : x
  2. Step 2: Convert to fraction form
    11,057.68/15,279.03 = 8,837.87/x
  3. Step 3: Cross multiply
    11,057.68x = 15,279.03 × 8,837.87
  4. Step 4: Simplify right side
    11,057.68x = 135,034,036.68
  5. Step 5: Solve for x
    x = 135,034,036.68/11,057.68
  6. Step 6: Final answer
    x = 12,211.79

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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.