Home / 9,211.88-12,708.32-6,226.62

Finding the Fourth Proportional to 9,211.88, 12,708.32 and 6,226.62

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Solution

The fourth proportional to 9,211.88, 12,708.32 and 6,226.62 is: 8,589.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.88 : 12,708.32 = 6,226.62 : x
  2. Step 2: Convert to fraction form
    9,211.88/12,708.32 = 6,226.62/x
  3. Step 3: Cross multiply
    9,211.88x = 12,708.32 × 6,226.62
  4. Step 4: Simplify right side
    9,211.88x = 79,129,879.48
  5. Step 5: Solve for x
    x = 79,129,879.48/9,211.88
  6. Step 6: Final answer
    x = 8,589.98

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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.