Home / 13,431.22-18,481.97-12,173.69

Finding the Fourth Proportional to 13,431.22, 18,481.97 and 12,173.69

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Solution

The fourth proportional to 13,431.22, 18,481.97 and 12,173.69 is: 16,751.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.22 : 18,481.97 = 12,173.69 : x
  2. Step 2: Convert to fraction form
    13,431.22/18,481.97 = 12,173.69/x
  3. Step 3: Cross multiply
    13,431.22x = 18,481.97 × 12,173.69
  4. Step 4: Simplify right side
    13,431.22x = 224,993,850.01
  5. Step 5: Solve for x
    x = 224,993,850.01/13,431.22
  6. Step 6: Final answer
    x = 16,751.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.