Home / 11,179.20-16,769.64-3,388.64

Finding the Fourth Proportional to 11,179.20, 16,769.64 and 3,388.64

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Solution

The fourth proportional to 11,179.20, 16,769.64 and 3,388.64 is: 5,083.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.20 : 16,769.64 = 3,388.64 : x
  2. Step 2: Convert to fraction form
    11,179.20/16,769.64 = 3,388.64/x
  3. Step 3: Cross multiply
    11,179.20x = 16,769.64 × 3,388.64
  4. Step 4: Simplify right side
    11,179.20x = 56,826,272.89
  5. Step 5: Solve for x
    x = 56,826,272.89/11,179.20
  6. Step 6: Final answer
    x = 5,083.21

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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.