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Finding the Fourth Proportional to 16,722.50, 23,078.97 and 9,553.55

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Solution

The fourth proportional to 16,722.50, 23,078.97 and 9,553.55 is: 13,185.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,722.50 : 23,078.97 = 9,553.55 : x
  2. Step 2: Convert to fraction form
    16,722.50/23,078.97 = 9,553.55/x
  3. Step 3: Cross multiply
    16,722.50x = 23,078.97 × 9,553.55
  4. Step 4: Simplify right side
    16,722.50x = 220,486,093.84
  5. Step 5: Solve for x
    x = 220,486,093.84/16,722.50
  6. Step 6: Final answer
    x = 13,185.00

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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.