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Finding the Fourth Proportional to 8,329.85, 12,494.79 and 2,486.33

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Solution

The fourth proportional to 8,329.85, 12,494.79 and 2,486.33 is: 3,729.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.85 : 12,494.79 = 2,486.33 : x
  2. Step 2: Convert to fraction form
    8,329.85/12,494.79 = 2,486.33/x
  3. Step 3: Cross multiply
    8,329.85x = 12,494.79 × 2,486.33
  4. Step 4: Simplify right side
    8,329.85x = 31,066,171.22
  5. Step 5: Solve for x
    x = 31,066,171.22/8,329.85
  6. Step 6: Final answer
    x = 3,729.50

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.