Home / 11,928.11-17,889.17-4,910.09

Finding the Fourth Proportional to 11,928.11, 17,889.17 and 4,910.09

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Solution

The fourth proportional to 11,928.11, 17,889.17 and 4,910.09 is: 7,363.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.11 : 17,889.17 = 4,910.09 : x
  2. Step 2: Convert to fraction form
    11,928.11/17,889.17 = 4,910.09/x
  3. Step 3: Cross multiply
    11,928.11x = 17,889.17 × 4,910.09
  4. Step 4: Simplify right side
    11,928.11x = 87,837,320.73
  5. Step 5: Solve for x
    x = 87,837,320.73/11,928.11
  6. Step 6: Final answer
    x = 7,363.90

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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.