Home / 8,220.21-11,343.94-4,443.37

Finding the Fourth Proportional to 8,220.21, 11,343.94 and 4,443.37

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Solution

The fourth proportional to 8,220.21, 11,343.94 and 4,443.37 is: 6,131.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.21 : 11,343.94 = 4,443.37 : x
  2. Step 2: Convert to fraction form
    8,220.21/11,343.94 = 4,443.37/x
  3. Step 3: Cross multiply
    8,220.21x = 11,343.94 × 4,443.37
  4. Step 4: Simplify right side
    8,220.21x = 50,405,283.21
  5. Step 5: Solve for x
    x = 50,405,283.21/8,220.21
  6. Step 6: Final answer
    x = 6,131.88

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Half scale
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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.