Home / 7,942.25-11,912.37-2,099.32

Finding the Fourth Proportional to 7,942.25, 11,912.37 and 2,099.32

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Solution

The fourth proportional to 7,942.25, 11,912.37 and 2,099.32 is: 3,148.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.25 : 11,912.37 = 2,099.32 : x
  2. Step 2: Convert to fraction form
    7,942.25/11,912.37 = 2,099.32/x
  3. Step 3: Cross multiply
    7,942.25x = 11,912.37 × 2,099.32
  4. Step 4: Simplify right side
    7,942.25x = 25,007,838.94
  5. Step 5: Solve for x
    x = 25,007,838.94/7,942.25
  6. Step 6: Final answer
    x = 3,148.71

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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.