Home / 7,896.12-11,845.62-3,279

Finding the Fourth Proportional to 7,896.12, 11,845.62 and 3,279

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Solution

The fourth proportional to 7,896.12, 11,845.62 and 3,279 is: 4,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.12 : 11,845.62 = 3,279 : x
  2. Step 2: Convert to fraction form
    7,896.12/11,845.62 = 3,279/x
  3. Step 3: Cross multiply
    7,896.12x = 11,845.62 × 3,279
  4. Step 4: Simplify right side
    7,896.12x = 38,841,787.98
  5. Step 5: Solve for x
    x = 38,841,787.98/7,896.12
  6. Step 6: Final answer
    x = 4,919.10

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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.