Home / 7,882.76-11,826.30-2,687.96

Finding the Fourth Proportional to 7,882.76, 11,826.30 and 2,687.96

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Solution

The fourth proportional to 7,882.76, 11,826.30 and 2,687.96 is: 4,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.76 : 11,826.30 = 2,687.96 : x
  2. Step 2: Convert to fraction form
    7,882.76/11,826.30 = 2,687.96/x
  3. Step 3: Cross multiply
    7,882.76x = 11,826.30 × 2,687.96
  4. Step 4: Simplify right side
    7,882.76x = 31,788,621.35
  5. Step 5: Solve for x
    x = 31,788,621.35/7,882.76
  6. Step 6: Final answer
    x = 4,032.68

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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.