Home / 11,239.92-16,856.97-3,340.56

Finding the Fourth Proportional to 11,239.92, 16,856.97 and 3,340.56

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Solution

The fourth proportional to 11,239.92, 16,856.97 and 3,340.56 is: 5,009.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.92 : 16,856.97 = 3,340.56 : x
  2. Step 2: Convert to fraction form
    11,239.92/16,856.97 = 3,340.56/x
  3. Step 3: Cross multiply
    11,239.92x = 16,856.97 × 3,340.56
  4. Step 4: Simplify right side
    11,239.92x = 56,311,719.70
  5. Step 5: Solve for x
    x = 56,311,719.70/11,239.92
  6. Step 6: Final answer
    x = 5,009.98

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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.