Home / 13,183.36-19,743.85-11,442.57

Finding the Fourth Proportional to 13,183.36, 19,743.85 and 11,442.57

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Solution

The fourth proportional to 13,183.36, 19,743.85 and 11,442.57 is: 17,136.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.36 : 19,743.85 = 11,442.57 : x
  2. Step 2: Convert to fraction form
    13,183.36/19,743.85 = 11,442.57/x
  3. Step 3: Cross multiply
    13,183.36x = 19,743.85 × 11,442.57
  4. Step 4: Simplify right side
    13,183.36x = 225,920,325.96
  5. Step 5: Solve for x
    x = 225,920,325.96/13,183.36
  6. Step 6: Final answer
    x = 17,136.78

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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.