Home / 13,722.28-20,579.82-4,955.56

Finding the Fourth Proportional to 13,722.28, 20,579.82 and 4,955.56

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Solution

The fourth proportional to 13,722.28, 20,579.82 and 4,955.56 is: 7,432.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.28 : 20,579.82 = 4,955.56 : x
  2. Step 2: Convert to fraction form
    13,722.28/20,579.82 = 4,955.56/x
  3. Step 3: Cross multiply
    13,722.28x = 20,579.82 × 4,955.56
  4. Step 4: Simplify right side
    13,722.28x = 101,984,532.80
  5. Step 5: Solve for x
    x = 101,984,532.80/13,722.28
  6. Step 6: Final answer
    x = 7,432.04

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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.