Home / 8,213.85-11,331.05-4,855.05

Finding the Fourth Proportional to 8,213.85, 11,331.05 and 4,855.05

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Solution

The fourth proportional to 8,213.85, 11,331.05 and 4,855.05 is: 6,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.85 : 11,331.05 = 4,855.05 : x
  2. Step 2: Convert to fraction form
    8,213.85/11,331.05 = 4,855.05/x
  3. Step 3: Cross multiply
    8,213.85x = 11,331.05 × 4,855.05
  4. Step 4: Simplify right side
    8,213.85x = 55,012,790.03
  5. Step 5: Solve for x
    x = 55,012,790.03/8,213.85
  6. Step 6: Final answer
    x = 6,697.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.