Home / 11,183.20-16,774.80-5,039.20

Finding the Fourth Proportional to 11,183.20, 16,774.80 and 5,039.20

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Solution

The fourth proportional to 11,183.20, 16,774.80 and 5,039.20 is: 7,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.20 : 16,774.80 = 5,039.20 : x
  2. Step 2: Convert to fraction form
    11,183.20/16,774.80 = 5,039.20/x
  3. Step 3: Cross multiply
    11,183.20x = 16,774.80 × 5,039.20
  4. Step 4: Simplify right side
    11,183.20x = 84,531,572.16
  5. Step 5: Solve for x
    x = 84,531,572.16/11,183.20
  6. Step 6: Final answer
    x = 7,558.80

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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.