Home / 11,487.16-17,229.66-4,918.60

Finding the Fourth Proportional to 11,487.16, 17,229.66 and 4,918.60

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Solution

The fourth proportional to 11,487.16, 17,229.66 and 4,918.60 is: 7,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.16 : 17,229.66 = 4,918.60 : x
  2. Step 2: Convert to fraction form
    11,487.16/17,229.66 = 4,918.60/x
  3. Step 3: Cross multiply
    11,487.16x = 17,229.66 × 4,918.60
  4. Step 4: Simplify right side
    11,487.16x = 84,745,805.68
  5. Step 5: Solve for x
    x = 84,745,805.68/11,487.16
  6. Step 6: Final answer
    x = 7,377.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.