Home / 11,310.35-16,961.46-3,912.80

Finding the Fourth Proportional to 11,310.35, 16,961.46 and 3,912.80

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Solution

The fourth proportional to 11,310.35, 16,961.46 and 3,912.80 is: 5,867.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.35 : 16,961.46 = 3,912.80 : x
  2. Step 2: Convert to fraction form
    11,310.35/16,961.46 = 3,912.80/x
  3. Step 3: Cross multiply
    11,310.35x = 16,961.46 × 3,912.80
  4. Step 4: Simplify right side
    11,310.35x = 66,366,800.69
  5. Step 5: Solve for x
    x = 66,366,800.69/11,310.35
  6. Step 6: Final answer
    x = 5,867.79

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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.