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Finding the Fourth Proportional to 17,605.80, 26,409 and 5,919.12

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Solution

The fourth proportional to 17,605.80, 26,409 and 5,919.12 is: 8,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.80 : 26,409 = 5,919.12 : x
  2. Step 2: Convert to fraction form
    17,605.80/26,409 = 5,919.12/x
  3. Step 3: Cross multiply
    17,605.80x = 26,409 × 5,919.12
  4. Step 4: Simplify right side
    17,605.80x = 156,318,040.08
  5. Step 5: Solve for x
    x = 156,318,040.08/17,605.80
  6. Step 6: Final answer
    x = 8,878.78

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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.