Home / 8,236.39-11,365.44-4,879.21

Finding the Fourth Proportional to 8,236.39, 11,365.44 and 4,879.21

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Solution

The fourth proportional to 8,236.39, 11,365.44 and 4,879.21 is: 6,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.39 : 11,365.44 = 4,879.21 : x
  2. Step 2: Convert to fraction form
    8,236.39/11,365.44 = 4,879.21/x
  3. Step 3: Cross multiply
    8,236.39x = 11,365.44 × 4,879.21
  4. Step 4: Simplify right side
    8,236.39x = 55,454,344.11
  5. Step 5: Solve for x
    x = 55,454,344.11/8,236.39
  6. Step 6: Final answer
    x = 6,732.85

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Half scale
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Double scale
Find fourth proportional to 8,237.39, 11,366.81 and 4,880.21
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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.