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Finding the Fourth Proportional to 14,268.52, 21,377.39 and 12,167.21

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Solution

The fourth proportional to 14,268.52, 21,377.39 and 12,167.21 is: 18,229.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.52 : 21,377.39 = 12,167.21 : x
  2. Step 2: Convert to fraction form
    14,268.52/21,377.39 = 12,167.21/x
  3. Step 3: Cross multiply
    14,268.52x = 21,377.39 × 12,167.21
  4. Step 4: Simplify right side
    14,268.52x = 260,103,109.52
  5. Step 5: Solve for x
    x = 260,103,109.52/14,268.52
  6. Step 6: Final answer
    x = 18,229.16

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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.