Home / 8,891.13-12,269.19-4,912.05

Finding the Fourth Proportional to 8,891.13, 12,269.19 and 4,912.05

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Solution

The fourth proportional to 8,891.13, 12,269.19 and 4,912.05 is: 6,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.13 : 12,269.19 = 4,912.05 : x
  2. Step 2: Convert to fraction form
    8,891.13/12,269.19 = 4,912.05/x
  3. Step 3: Cross multiply
    8,891.13x = 12,269.19 × 4,912.05
  4. Step 4: Simplify right side
    8,891.13x = 60,266,874.74
  5. Step 5: Solve for x
    x = 60,266,874.74/8,891.13
  6. Step 6: Final answer
    x = 6,778.31

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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.