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Finding the Fourth Proportional to 16,289.58, 22,480.08 and 9,119.28

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Solution

The fourth proportional to 16,289.58, 22,480.08 and 9,119.28 is: 12,584.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,289.58 : 22,480.08 = 9,119.28 : x
  2. Step 2: Convert to fraction form
    16,289.58/22,480.08 = 9,119.28/x
  3. Step 3: Cross multiply
    16,289.58x = 22,480.08 × 9,119.28
  4. Step 4: Simplify right side
    16,289.58x = 205,002,143.94
  5. Step 5: Solve for x
    x = 205,002,143.94/16,289.58
  6. Step 6: Final answer
    x = 12,584.86

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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.