Home / 11,287.73-16,931.99-5,361.57

Finding the Fourth Proportional to 11,287.73, 16,931.99 and 5,361.57

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Solution

The fourth proportional to 11,287.73, 16,931.99 and 5,361.57 is: 8,042.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.73 : 16,931.99 = 5,361.57 : x
  2. Step 2: Convert to fraction form
    11,287.73/16,931.99 = 5,361.57/x
  3. Step 3: Cross multiply
    11,287.73x = 16,931.99 × 5,361.57
  4. Step 4: Simplify right side
    11,287.73x = 90,782,049.62
  5. Step 5: Solve for x
    x = 90,782,049.62/11,287.73
  6. Step 6: Final answer
    x = 8,042.54

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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.