Home / 13,704.20-20,556.30-12,732.20

Finding the Fourth Proportional to 13,704.20, 20,556.30 and 12,732.20

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Solution

The fourth proportional to 13,704.20, 20,556.30 and 12,732.20 is: 19,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.20 : 20,556.30 = 12,732.20 : x
  2. Step 2: Convert to fraction form
    13,704.20/20,556.30 = 12,732.20/x
  3. Step 3: Cross multiply
    13,704.20x = 20,556.30 × 12,732.20
  4. Step 4: Simplify right side
    13,704.20x = 261,726,922.86
  5. Step 5: Solve for x
    x = 261,726,922.86/13,704.20
  6. Step 6: Final answer
    x = 19,098.30

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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.