Home / 7,832.96-11,742.24-3,387.85

Finding the Fourth Proportional to 7,832.96, 11,742.24 and 3,387.85

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Solution

The fourth proportional to 7,832.96, 11,742.24 and 3,387.85 is: 5,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,832.96 : 11,742.24 = 3,387.85 : x
  2. Step 2: Convert to fraction form
    7,832.96/11,742.24 = 3,387.85/x
  3. Step 3: Cross multiply
    7,832.96x = 11,742.24 × 3,387.85
  4. Step 4: Simplify right side
    7,832.96x = 39,780,889.07
  5. Step 5: Solve for x
    x = 39,780,889.07/7,832.96
  6. Step 6: Final answer
    x = 5,078.65

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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.