Home / 13,786.44-20,680.44-3,924.95

Finding the Fourth Proportional to 13,786.44, 20,680.44 and 3,924.95

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Solution

The fourth proportional to 13,786.44, 20,680.44 and 3,924.95 is: 5,887.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.44 : 20,680.44 = 3,924.95 : x
  2. Step 2: Convert to fraction form
    13,786.44/20,680.44 = 3,924.95/x
  3. Step 3: Cross multiply
    13,786.44x = 20,680.44 × 3,924.95
  4. Step 4: Simplify right side
    13,786.44x = 81,169,589.58
  5. Step 5: Solve for x
    x = 81,169,589.58/13,786.44
  6. Step 6: Final answer
    x = 5,887.64

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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.