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Finding the Fourth Proportional to 8,344.50, 11,454.05 and 7,379.13

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Solution

The fourth proportional to 8,344.50, 11,454.05 and 7,379.13 is: 10,128.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,344.50 : 11,454.05 = 7,379.13 : x
  2. Step 2: Convert to fraction form
    8,344.50/11,454.05 = 7,379.13/x
  3. Step 3: Cross multiply
    8,344.50x = 11,454.05 × 7,379.13
  4. Step 4: Simplify right side
    8,344.50x = 84,520,923.98
  5. Step 5: Solve for x
    x = 84,520,923.98/8,344.50
  6. Step 6: Final answer
    x = 10,128.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.