Home / 11,789.20-16,240.68-8,246.80

Finding the Fourth Proportional to 11,789.20, 16,240.68 and 8,246.80

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Solution

The fourth proportional to 11,789.20, 16,240.68 and 8,246.80 is: 11,360.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,789.20 : 16,240.68 = 8,246.80 : x
  2. Step 2: Convert to fraction form
    11,789.20/16,240.68 = 8,246.80/x
  3. Step 3: Cross multiply
    11,789.20x = 16,240.68 × 8,246.80
  4. Step 4: Simplify right side
    11,789.20x = 133,933,639.82
  5. Step 5: Solve for x
    x = 133,933,639.82/11,789.20
  6. Step 6: Final answer
    x = 11,360.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.