Home / 13,728.52-20,576.58-4,956.76

Finding the Fourth Proportional to 13,728.52, 20,576.58 and 4,956.76

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Solution

The fourth proportional to 13,728.52, 20,576.58 and 4,956.76 is: 7,429.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.52 : 20,576.58 = 4,956.76 : x
  2. Step 2: Convert to fraction form
    13,728.52/20,576.58 = 4,956.76/x
  3. Step 3: Cross multiply
    13,728.52x = 20,576.58 × 4,956.76
  4. Step 4: Simplify right side
    13,728.52x = 101,993,168.68
  5. Step 5: Solve for x
    x = 101,993,168.68/13,728.52
  6. Step 6: Final answer
    x = 7,429.29

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1.5x scale

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.