Home / 13,545.72-18,716.52-11,183.76

Finding the Fourth Proportional to 13,545.72, 18,716.52 and 11,183.76

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Solution

The fourth proportional to 13,545.72, 18,716.52 and 11,183.76 is: 15,452.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,545.72 : 18,716.52 = 11,183.76 : x
  2. Step 2: Convert to fraction form
    13,545.72/18,716.52 = 11,183.76/x
  3. Step 3: Cross multiply
    13,545.72x = 18,716.52 × 11,183.76
  4. Step 4: Simplify right side
    13,545.72x = 209,321,067.72
  5. Step 5: Solve for x
    x = 209,321,067.72/13,545.72
  6. Step 6: Final answer
    x = 15,452.93

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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.