Home / 18,739.96-25,857.33-11,183.87

Finding the Fourth Proportional to 18,739.96, 25,857.33 and 11,183.87

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Solution

The fourth proportional to 18,739.96, 25,857.33 and 11,183.87 is: 15,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.96 : 25,857.33 = 11,183.87 : x
  2. Step 2: Convert to fraction form
    18,739.96/25,857.33 = 11,183.87/x
  3. Step 3: Cross multiply
    18,739.96x = 25,857.33 × 11,183.87
  4. Step 4: Simplify right side
    18,739.96x = 289,185,039.97
  5. Step 5: Solve for x
    x = 289,185,039.97/18,739.96
  6. Step 6: Final answer
    x = 15,431.47

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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.