Home / 11,310.68-16,965.84-3,519.92

Finding the Fourth Proportional to 11,310.68, 16,965.84 and 3,519.92

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Solution

The fourth proportional to 11,310.68, 16,965.84 and 3,519.92 is: 5,279.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.68 : 16,965.84 = 3,519.92 : x
  2. Step 2: Convert to fraction form
    11,310.68/16,965.84 = 3,519.92/x
  3. Step 3: Cross multiply
    11,310.68x = 16,965.84 × 3,519.92
  4. Step 4: Simplify right side
    11,310.68x = 59,718,399.53
  5. Step 5: Solve for x
    x = 59,718,399.53/11,310.68
  6. Step 6: Final answer
    x = 5,279.82

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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.