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Finding the Fourth Proportional to 13,662.27, 18,854.44 and 7,613.06

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Solution

The fourth proportional to 13,662.27, 18,854.44 and 7,613.06 is: 10,506.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,662.27 : 18,854.44 = 7,613.06 : x
  2. Step 2: Convert to fraction form
    13,662.27/18,854.44 = 7,613.06/x
  3. Step 3: Cross multiply
    13,662.27x = 18,854.44 × 7,613.06
  4. Step 4: Simplify right side
    13,662.27x = 143,539,869.68
  5. Step 5: Solve for x
    x = 143,539,869.68/13,662.27
  6. Step 6: Final answer
    x = 10,506.30

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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.