Home / 11,379.40-15,703.86-6,344.44

Finding the Fourth Proportional to 11,379.40, 15,703.86 and 6,344.44

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Solution

The fourth proportional to 11,379.40, 15,703.86 and 6,344.44 is: 8,755.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.40 : 15,703.86 = 6,344.44 : x
  2. Step 2: Convert to fraction form
    11,379.40/15,703.86 = 6,344.44/x
  3. Step 3: Cross multiply
    11,379.40x = 15,703.86 × 6,344.44
  4. Step 4: Simplify right side
    11,379.40x = 99,632,197.54
  5. Step 5: Solve for x
    x = 99,632,197.54/11,379.40
  6. Step 6: Final answer
    x = 8,755.49

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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.