Home / 8,736.85-13,107.25-3,190.22

Finding the Fourth Proportional to 8,736.85, 13,107.25 and 3,190.22

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Solution

The fourth proportional to 8,736.85, 13,107.25 and 3,190.22 is: 4,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.85 : 13,107.25 = 3,190.22 : x
  2. Step 2: Convert to fraction form
    8,736.85/13,107.25 = 3,190.22/x
  3. Step 3: Cross multiply
    8,736.85x = 13,107.25 × 3,190.22
  4. Step 4: Simplify right side
    8,736.85x = 41,815,011.10
  5. Step 5: Solve for x
    x = 41,815,011.10/8,736.85
  6. Step 6: Final answer
    x = 4,786.05

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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.