Home / 8,299.77-12,451.97-3,620.19

Finding the Fourth Proportional to 8,299.77, 12,451.97 and 3,620.19

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Solution

The fourth proportional to 8,299.77, 12,451.97 and 3,620.19 is: 5,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,299.77 : 12,451.97 = 3,620.19 : x
  2. Step 2: Convert to fraction form
    8,299.77/12,451.97 = 3,620.19/x
  3. Step 3: Cross multiply
    8,299.77x = 12,451.97 × 3,620.19
  4. Step 4: Simplify right side
    8,299.77x = 45,078,497.27
  5. Step 5: Solve for x
    x = 45,078,497.27/8,299.77
  6. Step 6: Final answer
    x = 5,431.29

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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.