Home / 13,269.73-18,301.85-8,231.12

Finding the Fourth Proportional to 13,269.73, 18,301.85 and 8,231.12

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Solution

The fourth proportional to 13,269.73, 18,301.85 and 8,231.12 is: 11,352.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.73 : 18,301.85 = 8,231.12 : x
  2. Step 2: Convert to fraction form
    13,269.73/18,301.85 = 8,231.12/x
  3. Step 3: Cross multiply
    13,269.73x = 18,301.85 × 8,231.12
  4. Step 4: Simplify right side
    13,269.73x = 150,644,723.57
  5. Step 5: Solve for x
    x = 150,644,723.57/13,269.73
  6. Step 6: Final answer
    x = 11,352.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.