Home / 12,584.39-18,876.64-3,819.38

Finding the Fourth Proportional to 12,584.39, 18,876.64 and 3,819.38

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Solution

The fourth proportional to 12,584.39, 18,876.64 and 3,819.38 is: 5,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,584.39 : 18,876.64 = 3,819.38 : x
  2. Step 2: Convert to fraction form
    12,584.39/18,876.64 = 3,819.38/x
  3. Step 3: Cross multiply
    12,584.39x = 18,876.64 × 3,819.38
  4. Step 4: Simplify right side
    12,584.39x = 72,096,957.35
  5. Step 5: Solve for x
    x = 72,096,957.35/12,584.39
  6. Step 6: Final answer
    x = 5,729.08

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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.