Home / 13,757.18-20,632.80-6,729.90

Finding the Fourth Proportional to 13,757.18, 20,632.80 and 6,729.90

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Solution

The fourth proportional to 13,757.18, 20,632.80 and 6,729.90 is: 10,093.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.18 : 20,632.80 = 6,729.90 : x
  2. Step 2: Convert to fraction form
    13,757.18/20,632.80 = 6,729.90/x
  3. Step 3: Cross multiply
    13,757.18x = 20,632.80 × 6,729.90
  4. Step 4: Simplify right side
    13,757.18x = 138,856,680.72
  5. Step 5: Solve for x
    x = 138,856,680.72/13,757.18
  6. Step 6: Final answer
    x = 10,093.40

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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.