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Finding the Fourth Proportional to 18,518.73, 25,550.01 and 11,344.91

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Solution

The fourth proportional to 18,518.73, 25,550.01 and 11,344.91 is: 15,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.73 : 25,550.01 = 11,344.91 : x
  2. Step 2: Convert to fraction form
    18,518.73/25,550.01 = 11,344.91/x
  3. Step 3: Cross multiply
    18,518.73x = 25,550.01 × 11,344.91
  4. Step 4: Simplify right side
    18,518.73x = 289,862,548.01
  5. Step 5: Solve for x
    x = 289,862,548.01/18,518.73
  6. Step 6: Final answer
    x = 15,652.40

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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.