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Finding the Fourth Proportional to 16,630.25, 22,949.75 and 9,178.25

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Solution

The fourth proportional to 16,630.25, 22,949.75 and 9,178.25 is: 12,665.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,630.25 : 22,949.75 = 9,178.25 : x
  2. Step 2: Convert to fraction form
    16,630.25/22,949.75 = 9,178.25/x
  3. Step 3: Cross multiply
    16,630.25x = 22,949.75 × 9,178.25
  4. Step 4: Simplify right side
    16,630.25x = 210,638,497.05
  5. Step 5: Solve for x
    x = 210,638,497.05/16,630.25
  6. Step 6: Final answer
    x = 12,665.99

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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.