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Finding the Fourth Proportional to 17,954.16, 26,942.76 and 8,715.12

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Solution

The fourth proportional to 17,954.16, 26,942.76 and 8,715.12 is: 13,078.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,954.16 : 26,942.76 = 8,715.12 : x
  2. Step 2: Convert to fraction form
    17,954.16/26,942.76 = 8,715.12/x
  3. Step 3: Cross multiply
    17,954.16x = 26,942.76 × 8,715.12
  4. Step 4: Simplify right side
    17,954.16x = 234,809,386.53
  5. Step 5: Solve for x
    x = 234,809,386.53/17,954.16
  6. Step 6: Final answer
    x = 13,078.27

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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.