Home / 8,819.82-13,230.72-2,976.90

Finding the Fourth Proportional to 8,819.82, 13,230.72 and 2,976.90

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Solution

The fourth proportional to 8,819.82, 13,230.72 and 2,976.90 is: 4,465.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.82 : 13,230.72 = 2,976.90 : x
  2. Step 2: Convert to fraction form
    8,819.82/13,230.72 = 2,976.90/x
  3. Step 3: Cross multiply
    8,819.82x = 13,230.72 × 2,976.90
  4. Step 4: Simplify right side
    8,819.82x = 39,386,530.37
  5. Step 5: Solve for x
    x = 39,386,530.37/8,819.82
  6. Step 6: Final answer
    x = 4,465.68

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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.