Home / 12,131.44-18,183.72-11,147.26

Finding the Fourth Proportional to 12,131.44, 18,183.72 and 11,147.26

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Solution

The fourth proportional to 12,131.44, 18,183.72 and 11,147.26 is: 16,708.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131.44 : 18,183.72 = 11,147.26 : x
  2. Step 2: Convert to fraction form
    12,131.44/18,183.72 = 11,147.26/x
  3. Step 3: Cross multiply
    12,131.44x = 18,183.72 × 11,147.26
  4. Step 4: Simplify right side
    12,131.44x = 202,698,654.61
  5. Step 5: Solve for x
    x = 202,698,654.61/12,131.44
  6. Step 6: Final answer
    x = 16,708.54

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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.