Home / 9,144.62-13,690.19-8,269.13

Finding the Fourth Proportional to 9,144.62, 13,690.19 and 8,269.13

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Solution

The fourth proportional to 9,144.62, 13,690.19 and 8,269.13 is: 12,379.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.62 : 13,690.19 = 8,269.13 : x
  2. Step 2: Convert to fraction form
    9,144.62/13,690.19 = 8,269.13/x
  3. Step 3: Cross multiply
    9,144.62x = 13,690.19 × 8,269.13
  4. Step 4: Simplify right side
    9,144.62x = 113,206,015.73
  5. Step 5: Solve for x
    x = 113,206,015.73/9,144.62
  6. Step 6: Final answer
    x = 12,379.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.