Home / 11,799.91-17,691.64-5,222.50

Finding the Fourth Proportional to 11,799.91, 17,691.64 and 5,222.50

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Solution

The fourth proportional to 11,799.91, 17,691.64 and 5,222.50 is: 7,830.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,799.91 : 17,691.64 = 5,222.50 : x
  2. Step 2: Convert to fraction form
    11,799.91/17,691.64 = 5,222.50/x
  3. Step 3: Cross multiply
    11,799.91x = 17,691.64 × 5,222.50
  4. Step 4: Simplify right side
    11,799.91x = 92,394,589.90
  5. Step 5: Solve for x
    x = 92,394,589.90/11,799.91
  6. Step 6: Final answer
    x = 7,830.11

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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.