Home / 13,183.31-18,201.45-11,764.55

Finding the Fourth Proportional to 13,183.31, 18,201.45 and 11,764.55

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Solution

The fourth proportional to 13,183.31, 18,201.45 and 11,764.55 is: 16,242.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.31 : 18,201.45 = 11,764.55 : x
  2. Step 2: Convert to fraction form
    13,183.31/18,201.45 = 11,764.55/x
  3. Step 3: Cross multiply
    13,183.31x = 18,201.45 × 11,764.55
  4. Step 4: Simplify right side
    13,183.31x = 214,131,868.60
  5. Step 5: Solve for x
    x = 214,131,868.60/13,183.31
  6. Step 6: Final answer
    x = 16,242.65

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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.