Home / 11,584.86-15,987.00-6,279.66

Finding the Fourth Proportional to 11,584.86, 15,987.00 and 6,279.66

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Solution

The fourth proportional to 11,584.86, 15,987.00 and 6,279.66 is: 8,665.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,584.86 : 15,987.00 = 6,279.66 : x
  2. Step 2: Convert to fraction form
    11,584.86/15,987.00 = 6,279.66/x
  3. Step 3: Cross multiply
    11,584.86x = 15,987.00 × 6,279.66
  4. Step 4: Simplify right side
    11,584.86x = 100,392,947.97
  5. Step 5: Solve for x
    x = 100,392,947.97/11,584.86
  6. Step 6: Final answer
    x = 8,665.88

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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.