Home / 7,672.31-11,487.94-4,380.87

Finding the Fourth Proportional to 7,672.31, 11,487.94 and 4,380.87

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Solution

The fourth proportional to 7,672.31, 11,487.94 and 4,380.87 is: 6,559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.31 : 11,487.94 = 4,380.87 : x
  2. Step 2: Convert to fraction form
    7,672.31/11,487.94 = 4,380.87/x
  3. Step 3: Cross multiply
    7,672.31x = 11,487.94 × 4,380.87
  4. Step 4: Simplify right side
    7,672.31x = 50,327,160.76
  5. Step 5: Solve for x
    x = 50,327,160.76/7,672.31
  6. Step 6: Final answer
    x = 6,559.59

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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.