Home / 11,584.11-15,986.16-6,278.88

Finding the Fourth Proportional to 11,584.11, 15,986.16 and 6,278.88

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Solution

The fourth proportional to 11,584.11, 15,986.16 and 6,278.88 is: 8,664.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,584.11 : 15,986.16 = 6,278.88 : x
  2. Step 2: Convert to fraction form
    11,584.11/15,986.16 = 6,278.88/x
  3. Step 3: Cross multiply
    11,584.11x = 15,986.16 × 6,278.88
  4. Step 4: Simplify right side
    11,584.11x = 100,375,180.30
  5. Step 5: Solve for x
    x = 100,375,180.30/11,584.11
  6. Step 6: Final answer
    x = 8,664.90

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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.