Home / 11,939.39-17,912.66-4,819.96

Finding the Fourth Proportional to 11,939.39, 17,912.66 and 4,819.96

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Solution

The fourth proportional to 11,939.39, 17,912.66 and 4,819.96 is: 7,231.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.39 : 17,912.66 = 4,819.96 : x
  2. Step 2: Convert to fraction form
    11,939.39/17,912.66 = 4,819.96/x
  3. Step 3: Cross multiply
    11,939.39x = 17,912.66 × 4,819.96
  4. Step 4: Simplify right side
    11,939.39x = 86,338,304.69
  5. Step 5: Solve for x
    x = 86,338,304.69/11,939.39
  6. Step 6: Final answer
    x = 7,231.39

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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.