Home / 8,133.39-12,198.56-2,586.80

Finding the Fourth Proportional to 8,133.39, 12,198.56 and 2,586.80

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Solution

The fourth proportional to 8,133.39, 12,198.56 and 2,586.80 is: 3,879.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.39 : 12,198.56 = 2,586.80 : x
  2. Step 2: Convert to fraction form
    8,133.39/12,198.56 = 2,586.80/x
  3. Step 3: Cross multiply
    8,133.39x = 12,198.56 × 2,586.80
  4. Step 4: Simplify right side
    8,133.39x = 31,555,161.08
  5. Step 5: Solve for x
    x = 31,555,161.08/8,133.39
  6. Step 6: Final answer
    x = 3,879.71

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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.