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Finding the Fourth Proportional to 14,167.29, 19,555.29 and 9,689.43

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Solution

The fourth proportional to 14,167.29, 19,555.29 and 9,689.43 is: 13,374.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,167.29 : 19,555.29 = 9,689.43 : x
  2. Step 2: Convert to fraction form
    14,167.29/19,555.29 = 9,689.43/x
  3. Step 3: Cross multiply
    14,167.29x = 19,555.29 × 9,689.43
  4. Step 4: Simplify right side
    14,167.29x = 189,479,613.58
  5. Step 5: Solve for x
    x = 189,479,613.58/14,167.29
  6. Step 6: Final answer
    x = 13,374.44

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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.