Home / 7,942.52-11,913.82-2,099.06

Finding the Fourth Proportional to 7,942.52, 11,913.82 and 2,099.06

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Solution

The fourth proportional to 7,942.52, 11,913.82 and 2,099.06 is: 3,148.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.52 : 11,913.82 = 2,099.06 : x
  2. Step 2: Convert to fraction form
    7,942.52/11,913.82 = 2,099.06/x
  3. Step 3: Cross multiply
    7,942.52x = 11,913.82 × 2,099.06
  4. Step 4: Simplify right side
    7,942.52x = 25,007,847.55
  5. Step 5: Solve for x
    x = 25,007,847.55/7,942.52
  6. Step 6: Final answer
    x = 3,148.61

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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.