Home / 7,881.89-11,819.39-4,183.29

Finding the Fourth Proportional to 7,881.89, 11,819.39 and 4,183.29

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Solution

The fourth proportional to 7,881.89, 11,819.39 and 4,183.29 is: 6,273.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.89 : 11,819.39 = 4,183.29 : x
  2. Step 2: Convert to fraction form
    7,881.89/11,819.39 = 4,183.29/x
  3. Step 3: Cross multiply
    7,881.89x = 11,819.39 × 4,183.29
  4. Step 4: Simplify right side
    7,881.89x = 49,443,915.08
  5. Step 5: Solve for x
    x = 49,443,915.08/7,881.89
  6. Step 6: Final answer
    x = 6,273.11

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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.