Home / 11,791.05-17,686.58-3,999.93

Finding the Fourth Proportional to 11,791.05, 17,686.58 and 3,999.93

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Solution

The fourth proportional to 11,791.05, 17,686.58 and 3,999.93 is: 5,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.05 : 17,686.58 = 3,999.93 : x
  2. Step 2: Convert to fraction form
    11,791.05/17,686.58 = 3,999.93/x
  3. Step 3: Cross multiply
    11,791.05x = 17,686.58 × 3,999.93
  4. Step 4: Simplify right side
    11,791.05x = 70,745,061.94
  5. Step 5: Solve for x
    x = 70,745,061.94/11,791.05
  6. Step 6: Final answer
    x = 5,999.90

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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.