Home / 8,090.82-12,143.93-3,933.09

Finding the Fourth Proportional to 8,090.82, 12,143.93 and 3,933.09

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Solution

The fourth proportional to 8,090.82, 12,143.93 and 3,933.09 is: 5,903.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,090.82 : 12,143.93 = 3,933.09 : x
  2. Step 2: Convert to fraction form
    8,090.82/12,143.93 = 3,933.09/x
  3. Step 3: Cross multiply
    8,090.82x = 12,143.93 × 3,933.09
  4. Step 4: Simplify right side
    8,090.82x = 47,763,149.98
  5. Step 5: Solve for x
    x = 47,763,149.98/8,090.82
  6. Step 6: Final answer
    x = 5,903.38

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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.