Home / 8,243.92-11,380.62-5,555.80

Finding the Fourth Proportional to 8,243.92, 11,380.62 and 5,555.80

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Solution

The fourth proportional to 8,243.92, 11,380.62 and 5,555.80 is: 7,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.92 : 11,380.62 = 5,555.80 : x
  2. Step 2: Convert to fraction form
    8,243.92/11,380.62 = 5,555.80/x
  3. Step 3: Cross multiply
    8,243.92x = 11,380.62 × 5,555.80
  4. Step 4: Simplify right side
    8,243.92x = 63,228,448.60
  5. Step 5: Solve for x
    x = 63,228,448.60/8,243.92
  6. Step 6: Final answer
    x = 7,669.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.