Home / 13,822.59-20,729.63-3,959.22

Finding the Fourth Proportional to 13,822.59, 20,729.63 and 3,959.22

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Solution

The fourth proportional to 13,822.59, 20,729.63 and 3,959.22 is: 5,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.59 : 20,729.63 = 3,959.22 : x
  2. Step 2: Convert to fraction form
    13,822.59/20,729.63 = 3,959.22/x
  3. Step 3: Cross multiply
    13,822.59x = 20,729.63 × 3,959.22
  4. Step 4: Simplify right side
    13,822.59x = 82,073,175.59
  5. Step 5: Solve for x
    x = 82,073,175.59/13,822.59
  6. Step 6: Final answer
    x = 5,937.61

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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.