Home / 12,383.11-18,579.53-5,452.75

Finding the Fourth Proportional to 12,383.11, 18,579.53 and 5,452.75

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Solution

The fourth proportional to 12,383.11, 18,579.53 and 5,452.75 is: 8,181.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.11 : 18,579.53 = 5,452.75 : x
  2. Step 2: Convert to fraction form
    12,383.11/18,579.53 = 5,452.75/x
  3. Step 3: Cross multiply
    12,383.11x = 18,579.53 × 5,452.75
  4. Step 4: Simplify right side
    12,383.11x = 101,309,532.21
  5. Step 5: Solve for x
    x = 101,309,532.21/12,383.11
  6. Step 6: Final answer
    x = 8,181.27

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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.