Home / 8,173.85-12,261.92-3,243.99

Finding the Fourth Proportional to 8,173.85, 12,261.92 and 3,243.99

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Solution

The fourth proportional to 8,173.85, 12,261.92 and 3,243.99 is: 4,866.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.85 : 12,261.92 = 3,243.99 : x
  2. Step 2: Convert to fraction form
    8,173.85/12,261.92 = 3,243.99/x
  3. Step 3: Cross multiply
    8,173.85x = 12,261.92 × 3,243.99
  4. Step 4: Simplify right side
    8,173.85x = 39,777,529.64
  5. Step 5: Solve for x
    x = 39,777,529.64/8,173.85
  6. Step 6: Final answer
    x = 4,866.44

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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.