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Finding the Fourth Proportional to 7,329.21, 10,997.91 and 7,269.70

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Solution

The fourth proportional to 7,329.21, 10,997.91 and 7,269.70 is: 10,908.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.21 : 10,997.91 = 7,269.70 : x
  2. Step 2: Convert to fraction form
    7,329.21/10,997.91 = 7,269.70/x
  3. Step 3: Cross multiply
    7,329.21x = 10,997.91 × 7,269.70
  4. Step 4: Simplify right side
    7,329.21x = 79,951,506.33
  5. Step 5: Solve for x
    x = 79,951,506.33/7,329.21
  6. Step 6: Final answer
    x = 10,908.61

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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.