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Finding the Fourth Proportional to 13,792.12, 20,679.11 and 9,097.81

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Solution

The fourth proportional to 13,792.12, 20,679.11 and 9,097.81 is: 13,640.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.12 : 20,679.11 = 9,097.81 : x
  2. Step 2: Convert to fraction form
    13,792.12/20,679.11 = 9,097.81/x
  3. Step 3: Cross multiply
    13,792.12x = 20,679.11 × 9,097.81
  4. Step 4: Simplify right side
    13,792.12x = 188,134,464.86
  5. Step 5: Solve for x
    x = 188,134,464.86/13,792.12
  6. Step 6: Final answer
    x = 13,640.73

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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.