Home / 8,819.68-13,230.41-2,579.81

Finding the Fourth Proportional to 8,819.68, 13,230.41 and 2,579.81

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Solution

The fourth proportional to 8,819.68, 13,230.41 and 2,579.81 is: 3,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.68 : 13,230.41 = 2,579.81 : x
  2. Step 2: Convert to fraction form
    8,819.68/13,230.41 = 2,579.81/x
  3. Step 3: Cross multiply
    8,819.68x = 13,230.41 × 2,579.81
  4. Step 4: Simplify right side
    8,819.68x = 34,131,944.02
  5. Step 5: Solve for x
    x = 34,131,944.02/8,819.68
  6. Step 6: Final answer
    x = 3,869.98

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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.