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Finding the Fourth Proportional to 17,100.80, 25,626.90 and 11,900.60

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Solution

The fourth proportional to 17,100.80, 25,626.90 and 11,900.60 is: 17,833.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,100.80 : 25,626.90 = 11,900.60 : x
  2. Step 2: Convert to fraction form
    17,100.80/25,626.90 = 11,900.60/x
  3. Step 3: Cross multiply
    17,100.80x = 25,626.90 × 11,900.60
  4. Step 4: Simplify right side
    17,100.80x = 304,975,486.14
  5. Step 5: Solve for x
    x = 304,975,486.14/17,100.80
  6. Step 6: Final answer
    x = 17,833.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.