Home / 11,129.56-16,700.01-5,286.22

Finding the Fourth Proportional to 11,129.56, 16,700.01 and 5,286.22

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Solution

The fourth proportional to 11,129.56, 16,700.01 and 5,286.22 is: 7,932.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.56 : 16,700.01 = 5,286.22 : x
  2. Step 2: Convert to fraction form
    11,129.56/16,700.01 = 5,286.22/x
  3. Step 3: Cross multiply
    11,129.56x = 16,700.01 × 5,286.22
  4. Step 4: Simplify right side
    11,129.56x = 88,279,926.86
  5. Step 5: Solve for x
    x = 88,279,926.86/11,129.56
  6. Step 6: Final answer
    x = 7,932.02

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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.