Home / 9,129.43-13,696.87-3,861.71

Finding the Fourth Proportional to 9,129.43, 13,696.87 and 3,861.71

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Solution

The fourth proportional to 9,129.43, 13,696.87 and 3,861.71 is: 5,793.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.43 : 13,696.87 = 3,861.71 : x
  2. Step 2: Convert to fraction form
    9,129.43/13,696.87 = 3,861.71/x
  3. Step 3: Cross multiply
    9,129.43x = 13,696.87 × 3,861.71
  4. Step 4: Simplify right side
    9,129.43x = 52,893,339.85
  5. Step 5: Solve for x
    x = 52,893,339.85/9,129.43
  6. Step 6: Final answer
    x = 5,793.72

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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.