Home / 13,321.53-19,982.28-3,961.51

Finding the Fourth Proportional to 13,321.53, 19,982.28 and 3,961.51

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Solution

The fourth proportional to 13,321.53, 19,982.28 and 3,961.51 is: 5,942.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.53 : 19,982.28 = 3,961.51 : x
  2. Step 2: Convert to fraction form
    13,321.53/19,982.28 = 3,961.51/x
  3. Step 3: Cross multiply
    13,321.53x = 19,982.28 × 3,961.51
  4. Step 4: Simplify right side
    13,321.53x = 79,160,002.04
  5. Step 5: Solve for x
    x = 79,160,002.04/13,321.53
  6. Step 6: Final answer
    x = 5,942.26

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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.