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Finding the Fourth Proportional to 8,647.35, 12,968.95 and 3,964.44

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Solution

The fourth proportional to 8,647.35, 12,968.95 and 3,964.44 is: 5,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.35 : 12,968.95 = 3,964.44 : x
  2. Step 2: Convert to fraction form
    8,647.35/12,968.95 = 3,964.44/x
  3. Step 3: Cross multiply
    8,647.35x = 12,968.95 × 3,964.44
  4. Step 4: Simplify right side
    8,647.35x = 51,414,624.14
  5. Step 5: Solve for x
    x = 51,414,624.14/8,647.35
  6. Step 6: Final answer
    x = 5,945.71

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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.