Home / 11,379.41-15,704.85-6,344.09

Finding the Fourth Proportional to 11,379.41, 15,704.85 and 6,344.09

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Solution

The fourth proportional to 11,379.41, 15,704.85 and 6,344.09 is: 8,755.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.41 : 15,704.85 = 6,344.09 : x
  2. Step 2: Convert to fraction form
    11,379.41/15,704.85 = 6,344.09/x
  3. Step 3: Cross multiply
    11,379.41x = 15,704.85 × 6,344.09
  4. Step 4: Simplify right side
    11,379.41x = 99,632,981.84
  5. Step 5: Solve for x
    x = 99,632,981.84/11,379.41
  6. Step 6: Final answer
    x = 8,755.55

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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.