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Finding the Fourth Proportional to 14,768.56, 20,381.12 and 8,395.41

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Solution

The fourth proportional to 14,768.56, 20,381.12 and 8,395.41 is: 11,585.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,768.56 : 20,381.12 = 8,395.41 : x
  2. Step 2: Convert to fraction form
    14,768.56/20,381.12 = 8,395.41/x
  3. Step 3: Cross multiply
    14,768.56x = 20,381.12 × 8,395.41
  4. Step 4: Simplify right side
    14,768.56x = 171,107,858.66
  5. Step 5: Solve for x
    x = 171,107,858.66/14,768.56
  6. Step 6: Final answer
    x = 11,585.95

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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.