Home / 11,286.80-16,930.68-3,495.76

Finding the Fourth Proportional to 11,286.80, 16,930.68 and 3,495.76

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Solution

The fourth proportional to 11,286.80, 16,930.68 and 3,495.76 is: 5,243.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.80 : 16,930.68 = 3,495.76 : x
  2. Step 2: Convert to fraction form
    11,286.80/16,930.68 = 3,495.76/x
  3. Step 3: Cross multiply
    11,286.80x = 16,930.68 × 3,495.76
  4. Step 4: Simplify right side
    11,286.80x = 59,185,593.92
  5. Step 5: Solve for x
    x = 59,185,593.92/11,286.80
  6. Step 6: Final answer
    x = 5,243.79

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1.5x scale

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.