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Finding the Fourth Proportional to 13,755.46, 20,637.31 and 9,760.54

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Solution

The fourth proportional to 13,755.46, 20,637.31 and 9,760.54 is: 14,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.46 : 20,637.31 = 9,760.54 : x
  2. Step 2: Convert to fraction form
    13,755.46/20,637.31 = 9,760.54/x
  3. Step 3: Cross multiply
    13,755.46x = 20,637.31 × 9,760.54
  4. Step 4: Simplify right side
    13,755.46x = 201,431,289.75
  5. Step 5: Solve for x
    x = 201,431,289.75/13,755.46
  6. Step 6: Final answer
    x = 14,643.73

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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.