Home / 13,821.33-20,729.96-6,799.46

Finding the Fourth Proportional to 13,821.33, 20,729.96 and 6,799.46

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Solution

The fourth proportional to 13,821.33, 20,729.96 and 6,799.46 is: 10,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.33 : 20,729.96 = 6,799.46 : x
  2. Step 2: Convert to fraction form
    13,821.33/20,729.96 = 6,799.46/x
  3. Step 3: Cross multiply
    13,821.33x = 20,729.96 × 6,799.46
  4. Step 4: Simplify right side
    13,821.33x = 140,952,538.28
  5. Step 5: Solve for x
    x = 140,952,538.28/13,821.33
  6. Step 6: Final answer
    x = 10,198.19

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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.