Home / 8,220.62-11,344.41-4,683.85

Finding the Fourth Proportional to 8,220.62, 11,344.41 and 4,683.85

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Solution

The fourth proportional to 8,220.62, 11,344.41 and 4,683.85 is: 6,463.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.62 : 11,344.41 = 4,683.85 : x
  2. Step 2: Convert to fraction form
    8,220.62/11,344.41 = 4,683.85/x
  3. Step 3: Cross multiply
    8,220.62x = 11,344.41 × 4,683.85
  4. Step 4: Simplify right side
    8,220.62x = 53,135,486.42
  5. Step 5: Solve for x
    x = 53,135,486.42/8,220.62
  6. Step 6: Final answer
    x = 6,463.68

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Half scale
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Double scale
Find fourth proportional to 8,221.62, 11,345.79 and 4,684.85
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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.