Home / 13,817.05-20,728.76-3,956.41

Finding the Fourth Proportional to 13,817.05, 20,728.76 and 3,956.41

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Solution

The fourth proportional to 13,817.05, 20,728.76 and 3,956.41 is: 5,935.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.05 : 20,728.76 = 3,956.41 : x
  2. Step 2: Convert to fraction form
    13,817.05/20,728.76 = 3,956.41/x
  3. Step 3: Cross multiply
    13,817.05x = 20,728.76 × 3,956.41
  4. Step 4: Simplify right side
    13,817.05x = 82,011,453.57
  5. Step 5: Solve for x
    x = 82,011,453.57/13,817.05
  6. Step 6: Final answer
    x = 5,935.53

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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.