Home / 8,819.61-13,231.37-2,976.09

Finding the Fourth Proportional to 8,819.61, 13,231.37 and 2,976.09

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Solution

The fourth proportional to 8,819.61, 13,231.37 and 2,976.09 is: 4,464.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.61 : 13,231.37 = 2,976.09 : x
  2. Step 2: Convert to fraction form
    8,819.61/13,231.37 = 2,976.09/x
  3. Step 3: Cross multiply
    8,819.61x = 13,231.37 × 2,976.09
  4. Step 4: Simplify right side
    8,819.61x = 39,377,747.94
  5. Step 5: Solve for x
    x = 39,377,747.94/8,819.61
  6. Step 6: Final answer
    x = 4,464.79

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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.