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Finding the Fourth Proportional to 18,464.96, 25,479.97 and 10,505.09

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Solution

The fourth proportional to 18,464.96, 25,479.97 and 10,505.09 is: 14,496.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.96 : 25,479.97 = 10,505.09 : x
  2. Step 2: Convert to fraction form
    18,464.96/25,479.97 = 10,505.09/x
  3. Step 3: Cross multiply
    18,464.96x = 25,479.97 × 10,505.09
  4. Step 4: Simplify right side
    18,464.96x = 267,669,415.48
  5. Step 5: Solve for x
    x = 267,669,415.48/18,464.96
  6. Step 6: Final answer
    x = 14,496.07

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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.