Home / 8,220.60-11,344.42-4,443.75

Finding the Fourth Proportional to 8,220.60, 11,344.42 and 4,443.75

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Solution

The fourth proportional to 8,220.60, 11,344.42 and 4,443.75 is: 6,132.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.60 : 11,344.42 = 4,443.75 : x
  2. Step 2: Convert to fraction form
    8,220.60/11,344.42 = 4,443.75/x
  3. Step 3: Cross multiply
    8,220.60x = 11,344.42 × 4,443.75
  4. Step 4: Simplify right side
    8,220.60x = 50,411,766.38
  5. Step 5: Solve for x
    x = 50,411,766.38/8,220.60
  6. Step 6: Final answer
    x = 6,132.37

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Half scale
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Double 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.