Home / 12,125.99-18,186.96-3,361.79

Finding the Fourth Proportional to 12,125.99, 18,186.96 and 3,361.79

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Solution

The fourth proportional to 12,125.99, 18,186.96 and 3,361.79 is: 5,042.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.99 : 18,186.96 = 3,361.79 : x
  2. Step 2: Convert to fraction form
    12,125.99/18,186.96 = 3,361.79/x
  3. Step 3: Cross multiply
    12,125.99x = 18,186.96 × 3,361.79
  4. Step 4: Simplify right side
    12,125.99x = 61,140,740.26
  5. Step 5: Solve for x
    x = 61,140,740.26/12,125.99
  6. Step 6: Final answer
    x = 5,042.12

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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.