Home / 10,667.38-15,999.66-3,170.79

Finding the Fourth Proportional to 10,667.38, 15,999.66 and 3,170.79

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Solution

The fourth proportional to 10,667.38, 15,999.66 and 3,170.79 is: 4,755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,667.38 : 15,999.66 = 3,170.79 : x
  2. Step 2: Convert to fraction form
    10,667.38/15,999.66 = 3,170.79/x
  3. Step 3: Cross multiply
    10,667.38x = 15,999.66 × 3,170.79
  4. Step 4: Simplify right side
    10,667.38x = 50,731,481.93
  5. Step 5: Solve for x
    x = 50,731,481.93/10,667.38
  6. Step 6: Final answer
    x = 4,755.76

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1.5x scale

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.