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Finding the Fourth Proportional to 18,206.90, 25,125.24 and 10,249.10

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Solution

The fourth proportional to 18,206.90, 25,125.24 and 10,249.10 is: 14,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206.90 : 25,125.24 = 10,249.10 : x
  2. Step 2: Convert to fraction form
    18,206.90/25,125.24 = 10,249.10/x
  3. Step 3: Cross multiply
    18,206.90x = 25,125.24 × 10,249.10
  4. Step 4: Simplify right side
    18,206.90x = 257,511,097.28
  5. Step 5: Solve for x
    x = 257,511,097.28/18,206.90
  6. Step 6: Final answer
    x = 14,143.60

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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.