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Finding the Fourth Proportional to 12,053.75, 18,078.19 and 3,287.52

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Solution

The fourth proportional to 12,053.75, 18,078.19 and 3,287.52 is: 4,930.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,053.75 : 18,078.19 = 3,287.52 : x
  2. Step 2: Convert to fraction form
    12,053.75/18,078.19 = 3,287.52/x
  3. Step 3: Cross multiply
    12,053.75x = 18,078.19 × 3,287.52
  4. Step 4: Simplify right side
    12,053.75x = 59,432,411.19
  5. Step 5: Solve for x
    x = 59,432,411.19/12,053.75
  6. Step 6: Final answer
    x = 4,930.62

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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.