Home / 13,481.30-20,192.49-11,114.72

Finding the Fourth Proportional to 13,481.30, 20,192.49 and 11,114.72

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Solution

The fourth proportional to 13,481.30, 20,192.49 and 11,114.72 is: 16,647.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,481.30 : 20,192.49 = 11,114.72 : x
  2. Step 2: Convert to fraction form
    13,481.30/20,192.49 = 11,114.72/x
  3. Step 3: Cross multiply
    13,481.30x = 20,192.49 × 11,114.72
  4. Step 4: Simplify right side
    13,481.30x = 224,433,847.21
  5. Step 5: Solve for x
    x = 224,433,847.21/13,481.30
  6. Step 6: Final answer
    x = 16,647.79

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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.