Home / 11,272.50-16,909.66-3,481.31

Finding the Fourth Proportional to 11,272.50, 16,909.66 and 3,481.31

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Solution

The fourth proportional to 11,272.50, 16,909.66 and 3,481.31 is: 5,222.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.50 : 16,909.66 = 3,481.31 : x
  2. Step 2: Convert to fraction form
    11,272.50/16,909.66 = 3,481.31/x
  3. Step 3: Cross multiply
    11,272.50x = 16,909.66 × 3,481.31
  4. Step 4: Simplify right side
    11,272.50x = 58,867,815.08
  5. Step 5: Solve for x
    x = 58,867,815.08/11,272.50
  6. Step 6: Final answer
    x = 5,222.25

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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.