Home / 19,860.16-27,400.14-11,791.96

Finding the Fourth Proportional to 19,860.16, 27,400.14 and 11,791.96

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Solution

The fourth proportional to 19,860.16, 27,400.14 and 11,791.96 is: 16,268.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.16 : 27,400.14 = 11,791.96 : x
  2. Step 2: Convert to fraction form
    19,860.16/27,400.14 = 11,791.96/x
  3. Step 3: Cross multiply
    19,860.16x = 27,400.14 × 11,791.96
  4. Step 4: Simplify right side
    19,860.16x = 323,101,354.87
  5. Step 5: Solve for x
    x = 323,101,354.87/19,860.16
  6. Step 6: Final answer
    x = 16,268.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.