Home / 11,188.30-16,781.30-3,792.56

Finding the Fourth Proportional to 11,188.30, 16,781.30 and 3,792.56

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Solution

The fourth proportional to 11,188.30, 16,781.30 and 3,792.56 is: 5,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.30 : 16,781.30 = 3,792.56 : x
  2. Step 2: Convert to fraction form
    11,188.30/16,781.30 = 3,792.56/x
  3. Step 3: Cross multiply
    11,188.30x = 16,781.30 × 3,792.56
  4. Step 4: Simplify right side
    11,188.30x = 63,644,087.13
  5. Step 5: Solve for x
    x = 63,644,087.13/11,188.30
  6. Step 6: Final answer
    x = 5,688.45

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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.