Home / 11,584.80-15,986.97-6,279.57

Finding the Fourth Proportional to 11,584.80, 15,986.97 and 6,279.57

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Solution

The fourth proportional to 11,584.80, 15,986.97 and 6,279.57 is: 8,665.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,584.80 : 15,986.97 = 6,279.57 : x
  2. Step 2: Convert to fraction form
    11,584.80/15,986.97 = 6,279.57/x
  3. Step 3: Cross multiply
    11,584.80x = 15,986.97 × 6,279.57
  4. Step 4: Simplify right side
    11,584.80x = 100,391,297.20
  5. Step 5: Solve for x
    x = 100,391,297.20/11,584.80
  6. Step 6: Final answer
    x = 8,665.78

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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.