Home / 13,324.28-19,982.94-3,961.78

Finding the Fourth Proportional to 13,324.28, 19,982.94 and 3,961.78

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Solution

The fourth proportional to 13,324.28, 19,982.94 and 3,961.78 is: 5,941.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.28 : 19,982.94 = 3,961.78 : x
  2. Step 2: Convert to fraction form
    13,324.28/19,982.94 = 3,961.78/x
  3. Step 3: Cross multiply
    13,324.28x = 19,982.94 × 3,961.78
  4. Step 4: Simplify right side
    13,324.28x = 79,168,051.87
  5. Step 5: Solve for x
    x = 79,168,051.87/13,324.28
  6. Step 6: Final answer
    x = 5,941.64

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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.