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Finding the Fourth Proportional to 7,914.81, 11,872.78 and 2,367.71

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Solution

The fourth proportional to 7,914.81, 11,872.78 and 2,367.71 is: 3,551.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.81 : 11,872.78 = 2,367.71 : x
  2. Step 2: Convert to fraction form
    7,914.81/11,872.78 = 2,367.71/x
  3. Step 3: Cross multiply
    7,914.81x = 11,872.78 × 2,367.71
  4. Step 4: Simplify right side
    7,914.81x = 28,111,234.65
  5. Step 5: Solve for x
    x = 28,111,234.65/7,914.81
  6. Step 6: Final answer
    x = 3,551.73

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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.