Home / 14,117.24-21,175.83-7,791.82

Finding the Fourth Proportional to 14,117.24, 21,175.83 and 7,791.82

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Solution

The fourth proportional to 14,117.24, 21,175.83 and 7,791.82 is: 11,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.24 : 21,175.83 = 7,791.82 : x
  2. Step 2: Convert to fraction form
    14,117.24/21,175.83 = 7,791.82/x
  3. Step 3: Cross multiply
    14,117.24x = 21,175.83 × 7,791.82
  4. Step 4: Simplify right side
    14,117.24x = 164,998,202.77
  5. Step 5: Solve for x
    x = 164,998,202.77/14,117.24
  6. Step 6: Final answer
    x = 11,687.71

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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.