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Finding the Fourth Proportional to 11,617.33, 17,420.67 and 3,718.31

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Solution

The fourth proportional to 11,617.33, 17,420.67 and 3,718.31 is: 5,575.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.33 : 17,420.67 = 3,718.31 : x
  2. Step 2: Convert to fraction form
    11,617.33/17,420.67 = 3,718.31/x
  3. Step 3: Cross multiply
    11,617.33x = 17,420.67 × 3,718.31
  4. Step 4: Simplify right side
    11,617.33x = 64,775,451.47
  5. Step 5: Solve for x
    x = 64,775,451.47/11,617.33
  6. Step 6: Final answer
    x = 5,575.76

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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.