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Finding the Fourth Proportional to 14,754.54, 20,361.78 and 8,040.72

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Solution

The fourth proportional to 14,754.54, 20,361.78 and 8,040.72 is: 11,096.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,754.54 : 20,361.78 = 8,040.72 : x
  2. Step 2: Convert to fraction form
    14,754.54/20,361.78 = 8,040.72/x
  3. Step 3: Cross multiply
    14,754.54x = 20,361.78 × 8,040.72
  4. Step 4: Simplify right side
    14,754.54x = 163,723,371.68
  5. Step 5: Solve for x
    x = 163,723,371.68/14,754.54
  6. Step 6: Final answer
    x = 11,096.47

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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.