Home / 11,251.98-16,879.32-3,857.76

Finding the Fourth Proportional to 11,251.98, 16,879.32 and 3,857.76

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Solution

The fourth proportional to 11,251.98, 16,879.32 and 3,857.76 is: 5,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,251.98 : 16,879.32 = 3,857.76 : x
  2. Step 2: Convert to fraction form
    11,251.98/16,879.32 = 3,857.76/x
  3. Step 3: Cross multiply
    11,251.98x = 16,879.32 × 3,857.76
  4. Step 4: Simplify right side
    11,251.98x = 65,116,365.52
  5. Step 5: Solve for x
    x = 65,116,365.52/11,251.98
  6. Step 6: Final answer
    x = 5,787.10

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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.