Home / 7,914.76-11,867.65-3,229.28

Finding the Fourth Proportional to 7,914.76, 11,867.65 and 3,229.28

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Solution

The fourth proportional to 7,914.76, 11,867.65 and 3,229.28 is: 4,842.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.76 : 11,867.65 = 3,229.28 : x
  2. Step 2: Convert to fraction form
    7,914.76/11,867.65 = 3,229.28/x
  3. Step 3: Cross multiply
    7,914.76x = 11,867.65 × 3,229.28
  4. Step 4: Simplify right side
    7,914.76x = 38,324,008.64
  5. Step 5: Solve for x
    x = 38,324,008.64/7,914.76
  6. Step 6: Final answer
    x = 4,842.09

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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.