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Finding the Fourth Proportional to 9,372.22, 12,944.29 and 6,382.86

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Solution

The fourth proportional to 9,372.22, 12,944.29 and 6,382.86 is: 8,815.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.22 : 12,944.29 = 6,382.86 : x
  2. Step 2: Convert to fraction form
    9,372.22/12,944.29 = 6,382.86/x
  3. Step 3: Cross multiply
    9,372.22x = 12,944.29 × 6,382.86
  4. Step 4: Simplify right side
    9,372.22x = 82,621,590.87
  5. Step 5: Solve for x
    x = 82,621,590.87/9,372.22
  6. Step 6: Final answer
    x = 8,815.58

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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.