Home / 11,923.92-16,453.26-6,618.78

Finding the Fourth Proportional to 11,923.92, 16,453.26 and 6,618.78

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Solution

The fourth proportional to 11,923.92, 16,453.26 and 6,618.78 is: 9,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,923.92 : 16,453.26 = 6,618.78 : x
  2. Step 2: Convert to fraction form
    11,923.92/16,453.26 = 6,618.78/x
  3. Step 3: Cross multiply
    11,923.92x = 16,453.26 × 6,618.78
  4. Step 4: Simplify right side
    11,923.92x = 108,900,508.22
  5. Step 5: Solve for x
    x = 108,900,508.22/11,923.92
  6. Step 6: Final answer
    x = 9,132.95

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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.