Home / 8,863.20-13,299.12-4,479.12

Finding the Fourth Proportional to 8,863.20, 13,299.12 and 4,479.12

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Solution

The fourth proportional to 8,863.20, 13,299.12 and 4,479.12 is: 6,720.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.20 : 13,299.12 = 4,479.12 : x
  2. Step 2: Convert to fraction form
    8,863.20/13,299.12 = 4,479.12/x
  3. Step 3: Cross multiply
    8,863.20x = 13,299.12 × 4,479.12
  4. Step 4: Simplify right side
    8,863.20x = 59,568,354.37
  5. Step 5: Solve for x
    x = 59,568,354.37/8,863.20
  6. Step 6: Final answer
    x = 6,720.86

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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.