Home / 7,942.46-11,913.78-2,099.01

Finding the Fourth Proportional to 7,942.46, 11,913.78 and 2,099.01

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Solution

The fourth proportional to 7,942.46, 11,913.78 and 2,099.01 is: 3,148.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.46 : 11,913.78 = 2,099.01 : x
  2. Step 2: Convert to fraction form
    7,942.46/11,913.78 = 2,099.01/x
  3. Step 3: Cross multiply
    7,942.46x = 11,913.78 × 2,099.01
  4. Step 4: Simplify right side
    7,942.46x = 25,007,195.91
  5. Step 5: Solve for x
    x = 25,007,195.91/7,942.46
  6. Step 6: Final answer
    x = 3,148.55

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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.