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Finding the Fourth Proportional to 8,968.32, 12,379.23 and 8,022.44

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Solution

The fourth proportional to 8,968.32, 12,379.23 and 8,022.44 is: 11,073.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.32 : 12,379.23 = 8,022.44 : x
  2. Step 2: Convert to fraction form
    8,968.32/12,379.23 = 8,022.44/x
  3. Step 3: Cross multiply
    8,968.32x = 12,379.23 × 8,022.44
  4. Step 4: Simplify right side
    8,968.32x = 99,311,660.87
  5. Step 5: Solve for x
    x = 99,311,660.87/8,968.32
  6. Step 6: Final answer
    x = 11,073.61

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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.