Home / 26,667.20-39,989.28-8,194.88

Finding the Fourth Proportional to 26,667.20, 39,989.28 and 8,194.88

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Solution

The fourth proportional to 26,667.20, 39,989.28 and 8,194.88 is: 12,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,667.20 : 39,989.28 = 8,194.88 : x
  2. Step 2: Convert to fraction form
    26,667.20/39,989.28 = 8,194.88/x
  3. Step 3: Cross multiply
    26,667.20x = 39,989.28 × 8,194.88
  4. Step 4: Simplify right side
    26,667.20x = 327,707,350.89
  5. Step 5: Solve for x
    x = 327,707,350.89/26,667.20
  6. Step 6: Final answer
    x = 12,288.78

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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.