Home / 8,129.85-12,198.27-3,453.02

Finding the Fourth Proportional to 8,129.85, 12,198.27 and 3,453.02

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Solution

The fourth proportional to 8,129.85, 12,198.27 and 3,453.02 is: 5,181.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.85 : 12,198.27 = 3,453.02 : x
  2. Step 2: Convert to fraction form
    8,129.85/12,198.27 = 3,453.02/x
  3. Step 3: Cross multiply
    8,129.85x = 12,198.27 × 3,453.02
  4. Step 4: Simplify right side
    8,129.85x = 42,120,809.28
  5. Step 5: Solve for x
    x = 42,120,809.28/8,129.85
  6. Step 6: Final answer
    x = 5,181.01

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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.