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Finding the Fourth Proportional to 14,983.20, 22,435.20 and 12,007.80

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Solution

The fourth proportional to 14,983.20, 22,435.20 and 12,007.80 is: 17,979.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,983.20 : 22,435.20 = 12,007.80 : x
  2. Step 2: Convert to fraction form
    14,983.20/22,435.20 = 12,007.80/x
  3. Step 3: Cross multiply
    14,983.20x = 22,435.20 × 12,007.80
  4. Step 4: Simplify right side
    14,983.20x = 269,397,394.56
  5. Step 5: Solve for x
    x = 269,397,394.56/14,983.20
  6. Step 6: Final answer
    x = 17,979.96

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.