Home / 13,958.28-20,939.67-5,074.41

Finding the Fourth Proportional to 13,958.28, 20,939.67 and 5,074.41

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Solution

The fourth proportional to 13,958.28, 20,939.67 and 5,074.41 is: 7,612.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.28 : 20,939.67 = 5,074.41 : x
  2. Step 2: Convert to fraction form
    13,958.28/20,939.67 = 5,074.41/x
  3. Step 3: Cross multiply
    13,958.28x = 20,939.67 × 5,074.41
  4. Step 4: Simplify right side
    13,958.28x = 106,256,470.84
  5. Step 5: Solve for x
    x = 106,256,470.84/13,958.28
  6. Step 6: Final answer
    x = 7,612.43

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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.