Home / 8,786.08-13,179.36-3,853.20

Finding the Fourth Proportional to 8,786.08, 13,179.36 and 3,853.20

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Solution

The fourth proportional to 8,786.08, 13,179.36 and 3,853.20 is: 5,779.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.08 : 13,179.36 = 3,853.20 : x
  2. Step 2: Convert to fraction form
    8,786.08/13,179.36 = 3,853.20/x
  3. Step 3: Cross multiply
    8,786.08x = 13,179.36 × 3,853.20
  4. Step 4: Simplify right side
    8,786.08x = 50,782,709.95
  5. Step 5: Solve for x
    x = 50,782,709.95/8,786.08
  6. Step 6: Final answer
    x = 5,779.91

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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.