Home / 13,944.70-20,912.05-5,057.79

Finding the Fourth Proportional to 13,944.70, 20,912.05 and 5,057.79

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Solution

The fourth proportional to 13,944.70, 20,912.05 and 5,057.79 is: 7,584.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.70 : 20,912.05 = 5,057.79 : x
  2. Step 2: Convert to fraction form
    13,944.70/20,912.05 = 5,057.79/x
  3. Step 3: Cross multiply
    13,944.70x = 20,912.05 × 5,057.79
  4. Step 4: Simplify right side
    13,944.70x = 105,768,757.37
  5. Step 5: Solve for x
    x = 105,768,757.37/13,944.70
  6. Step 6: Final answer
    x = 7,584.87

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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.