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Finding the Fourth Proportional to 13,333.73, 18,398 and 8,028.89

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Solution

The fourth proportional to 13,333.73, 18,398 and 8,028.89 is: 11,078.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.73 : 18,398 = 8,028.89 : x
  2. Step 2: Convert to fraction form
    13,333.73/18,398 = 8,028.89/x
  3. Step 3: Cross multiply
    13,333.73x = 18,398 × 8,028.89
  4. Step 4: Simplify right side
    13,333.73x = 147,715,518.22
  5. Step 5: Solve for x
    x = 147,715,518.22/13,333.73
  6. Step 6: Final answer
    x = 11,078.33

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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.