Home / 11,129.24-16,694.04-5,286.44

Finding the Fourth Proportional to 11,129.24, 16,694.04 and 5,286.44

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Solution

The fourth proportional to 11,129.24, 16,694.04 and 5,286.44 is: 7,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.24 : 16,694.04 = 5,286.44 : x
  2. Step 2: Convert to fraction form
    11,129.24/16,694.04 = 5,286.44/x
  3. Step 3: Cross multiply
    11,129.24x = 16,694.04 × 5,286.44
  4. Step 4: Simplify right side
    11,129.24x = 88,252,040.82
  5. Step 5: Solve for x
    x = 88,252,040.82/11,129.24
  6. Step 6: Final answer
    x = 7,929.75

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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.