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Finding the Fourth Proportional to 12,290.52, 18,433.25 and 3,523.49

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Solution

The fourth proportional to 12,290.52, 18,433.25 and 3,523.49 is: 5,284.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.52 : 18,433.25 = 3,523.49 : x
  2. Step 2: Convert to fraction form
    12,290.52/18,433.25 = 3,523.49/x
  3. Step 3: Cross multiply
    12,290.52x = 18,433.25 × 3,523.49
  4. Step 4: Simplify right side
    12,290.52x = 64,949,372.04
  5. Step 5: Solve for x
    x = 64,949,372.04/12,290.52
  6. Step 6: Final answer
    x = 5,284.51

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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.