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Finding the Fourth Proportional to 14,218.56, 19,625.72 and 8,251.56

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Solution

The fourth proportional to 14,218.56, 19,625.72 and 8,251.56 is: 11,389.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.56 : 19,625.72 = 8,251.56 : x
  2. Step 2: Convert to fraction form
    14,218.56/19,625.72 = 8,251.56/x
  3. Step 3: Cross multiply
    14,218.56x = 19,625.72 × 8,251.56
  4. Step 4: Simplify right side
    14,218.56x = 161,942,806.12
  5. Step 5: Solve for x
    x = 161,942,806.12/14,218.56
  6. Step 6: Final answer
    x = 11,389.54

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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.