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Finding the Fourth Proportional to 13,372.44, 18,453.83 and 7,403.96

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Solution

The fourth proportional to 13,372.44, 18,453.83 and 7,403.96 is: 10,217.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.44 : 18,453.83 = 7,403.96 : x
  2. Step 2: Convert to fraction form
    13,372.44/18,453.83 = 7,403.96/x
  3. Step 3: Cross multiply
    13,372.44x = 18,453.83 × 7,403.96
  4. Step 4: Simplify right side
    13,372.44x = 136,631,324.48
  5. Step 5: Solve for x
    x = 136,631,324.48/13,372.44
  6. Step 6: Final answer
    x = 10,217.38

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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.