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Finding the Fourth Proportional to 18,245.93, 25,181.62 and 10,287.99

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Solution

The fourth proportional to 18,245.93, 25,181.62 and 10,287.99 is: 14,198.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.93 : 25,181.62 = 10,287.99 : x
  2. Step 2: Convert to fraction form
    18,245.93/25,181.62 = 10,287.99/x
  3. Step 3: Cross multiply
    18,245.93x = 25,181.62 × 10,287.99
  4. Step 4: Simplify right side
    18,245.93x = 259,068,229.02
  5. Step 5: Solve for x
    x = 259,068,229.02/18,245.93
  6. Step 6: Final answer
    x = 14,198.69

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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.