Home / 13,721.55-20,576.25-4,956.54

Finding the Fourth Proportional to 13,721.55, 20,576.25 and 4,956.54

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Solution

The fourth proportional to 13,721.55, 20,576.25 and 4,956.54 is: 7,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.55 : 20,576.25 = 4,956.54 : x
  2. Step 2: Convert to fraction form
    13,721.55/20,576.25 = 4,956.54/x
  3. Step 3: Cross multiply
    13,721.55x = 20,576.25 × 4,956.54
  4. Step 4: Simplify right side
    13,721.55x = 101,987,006.18
  5. Step 5: Solve for x
    x = 101,987,006.18/13,721.55
  6. Step 6: Final answer
    x = 7,432.62

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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.