Home / 18,819.62-28,230.03-6,976.37

Finding the Fourth Proportional to 18,819.62, 28,230.03 and 6,976.37

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Solution

The fourth proportional to 18,819.62, 28,230.03 and 6,976.37 is: 10,464.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.62 : 28,230.03 = 6,976.37 : x
  2. Step 2: Convert to fraction form
    18,819.62/28,230.03 = 6,976.37/x
  3. Step 3: Cross multiply
    18,819.62x = 28,230.03 × 6,976.37
  4. Step 4: Simplify right side
    18,819.62x = 196,942,993.24
  5. Step 5: Solve for x
    x = 196,942,993.24/18,819.62
  6. Step 6: Final answer
    x = 10,464.77

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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.