Home / 13,343.84-20,016.96-3,983.68

Finding the Fourth Proportional to 13,343.84, 20,016.96 and 3,983.68

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Solution

The fourth proportional to 13,343.84, 20,016.96 and 3,983.68 is: 5,975.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.84 : 20,016.96 = 3,983.68 : x
  2. Step 2: Convert to fraction form
    13,343.84/20,016.96 = 3,983.68/x
  3. Step 3: Cross multiply
    13,343.84x = 20,016.96 × 3,983.68
  4. Step 4: Simplify right side
    13,343.84x = 79,741,163.21
  5. Step 5: Solve for x
    x = 79,741,163.21/13,343.84
  6. Step 6: Final answer
    x = 5,975.88

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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.