Home / 8,175.09-12,261.40-3,899.73

Finding the Fourth Proportional to 8,175.09, 12,261.40 and 3,899.73

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Solution

The fourth proportional to 8,175.09, 12,261.40 and 3,899.73 is: 5,849.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,175.09 : 12,261.40 = 3,899.73 : x
  2. Step 2: Convert to fraction form
    8,175.09/12,261.40 = 3,899.73/x
  3. Step 3: Cross multiply
    8,175.09x = 12,261.40 × 3,899.73
  4. Step 4: Simplify right side
    8,175.09x = 47,816,179.38
  5. Step 5: Solve for x
    x = 47,816,179.38/8,175.09
  6. Step 6: Final answer
    x = 5,849.01

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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.