Home / 10,194.79-15,286.68-3,171.76

Finding the Fourth Proportional to 10,194.79, 15,286.68 and 3,171.76

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Solution

The fourth proportional to 10,194.79, 15,286.68 and 3,171.76 is: 4,755.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,194.79 : 15,286.68 = 3,171.76 : x
  2. Step 2: Convert to fraction form
    10,194.79/15,286.68 = 3,171.76/x
  3. Step 3: Cross multiply
    10,194.79x = 15,286.68 × 3,171.76
  4. Step 4: Simplify right side
    10,194.79x = 48,485,680.16
  5. Step 5: Solve for x
    x = 48,485,680.16/10,194.79
  6. Step 6: Final answer
    x = 4,755.93

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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.