Home / 13,982.34-20,977.11-4,121.30

Finding the Fourth Proportional to 13,982.34, 20,977.11 and 4,121.30

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Solution

The fourth proportional to 13,982.34, 20,977.11 and 4,121.30 is: 6,183.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.34 : 20,977.11 = 4,121.30 : x
  2. Step 2: Convert to fraction form
    13,982.34/20,977.11 = 4,121.30/x
  3. Step 3: Cross multiply
    13,982.34x = 20,977.11 × 4,121.30
  4. Step 4: Simplify right side
    13,982.34x = 86,452,963.44
  5. Step 5: Solve for x
    x = 86,452,963.44/13,982.34
  6. Step 6: Final answer
    x = 6,183.01

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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.