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Finding the Fourth Proportional to 8,246.81, 12,367.08 and 2,980.39

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Solution

The fourth proportional to 8,246.81, 12,367.08 and 2,980.39 is: 4,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,246.81 : 12,367.08 = 2,980.39 : x
  2. Step 2: Convert to fraction form
    8,246.81/12,367.08 = 2,980.39/x
  3. Step 3: Cross multiply
    8,246.81x = 12,367.08 × 2,980.39
  4. Step 4: Simplify right side
    8,246.81x = 36,858,721.56
  5. Step 5: Solve for x
    x = 36,858,721.56/8,246.81
  6. Step 6: Final answer
    x = 4,469.45

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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.