Home / 9,134.78-13,696.85-3,581.61

Finding the Fourth Proportional to 9,134.78, 13,696.85 and 3,581.61

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Solution

The fourth proportional to 9,134.78, 13,696.85 and 3,581.61 is: 5,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.78 : 13,696.85 = 3,581.61 : x
  2. Step 2: Convert to fraction form
    9,134.78/13,696.85 = 3,581.61/x
  3. Step 3: Cross multiply
    9,134.78x = 13,696.85 × 3,581.61
  4. Step 4: Simplify right side
    9,134.78x = 49,056,757.02
  5. Step 5: Solve for x
    x = 49,056,757.02/9,134.78
  6. Step 6: Final answer
    x = 5,370.33

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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.