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Finding the Fourth Proportional to 17,188.56, 25,792.78 and 9,291.12

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Solution

The fourth proportional to 17,188.56, 25,792.78 and 9,291.12 is: 13,942.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,188.56 : 25,792.78 = 9,291.12 : x
  2. Step 2: Convert to fraction form
    17,188.56/25,792.78 = 9,291.12/x
  3. Step 3: Cross multiply
    17,188.56x = 25,792.78 × 9,291.12
  4. Step 4: Simplify right side
    17,188.56x = 239,643,814.11
  5. Step 5: Solve for x
    x = 239,643,814.11/17,188.56
  6. Step 6: Final answer
    x = 13,942.05

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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.