Home / 7,942.46-11,912.33-2,099.66

Finding the Fourth Proportional to 7,942.46, 11,912.33 and 2,099.66

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Solution

The fourth proportional to 7,942.46, 11,912.33 and 2,099.66 is: 3,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.46 : 11,912.33 = 2,099.66 : x
  2. Step 2: Convert to fraction form
    7,942.46/11,912.33 = 2,099.66/x
  3. Step 3: Cross multiply
    7,942.46x = 11,912.33 × 2,099.66
  4. Step 4: Simplify right side
    7,942.46x = 25,011,788.50
  5. Step 5: Solve for x
    x = 25,011,788.50/7,942.46
  6. Step 6: Final answer
    x = 3,149.13

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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.