Home / 8,891.22-12,269.91-4,912.23

Finding the Fourth Proportional to 8,891.22, 12,269.91 and 4,912.23

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Solution

The fourth proportional to 8,891.22, 12,269.91 and 4,912.23 is: 6,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.22 : 12,269.91 = 4,912.23 : x
  2. Step 2: Convert to fraction form
    8,891.22/12,269.91 = 4,912.23/x
  3. Step 3: Cross multiply
    8,891.22x = 12,269.91 × 4,912.23
  4. Step 4: Simplify right side
    8,891.22x = 60,272,620.00
  5. Step 5: Solve for x
    x = 60,272,620.00/8,891.22
  6. Step 6: Final answer
    x = 6,778.89

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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.