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Finding the Fourth Proportional to 18,410.83, 25,406.25 and 11,252.72

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Solution

The fourth proportional to 18,410.83, 25,406.25 and 11,252.72 is: 15,528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.83 : 25,406.25 = 11,252.72 : x
  2. Step 2: Convert to fraction form
    18,410.83/25,406.25 = 11,252.72/x
  3. Step 3: Cross multiply
    18,410.83x = 25,406.25 × 11,252.72
  4. Step 4: Simplify right side
    18,410.83x = 285,889,361.24
  5. Step 5: Solve for x
    x = 285,889,361.24/18,410.83
  6. Step 6: Final answer
    x = 15,528.33

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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.