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Finding the Fourth Proportional to 13,593.49, 18,755.76 and 8,286.37

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Solution

The fourth proportional to 13,593.49, 18,755.76 and 8,286.37 is: 11,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.49 : 18,755.76 = 8,286.37 : x
  2. Step 2: Convert to fraction form
    13,593.49/18,755.76 = 8,286.37/x
  3. Step 3: Cross multiply
    13,593.49x = 18,755.76 × 8,286.37
  4. Step 4: Simplify right side
    13,593.49x = 155,417,166.99
  5. Step 5: Solve for x
    x = 155,417,166.99/13,593.49
  6. Step 6: Final answer
    x = 11,433.21

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