Home / 19,691.36-27,180.66-11,736.08

Finding the Fourth Proportional to 19,691.36, 27,180.66 and 11,736.08

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Solution

The fourth proportional to 19,691.36, 27,180.66 and 11,736.08 is: 16,199.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.36 : 27,180.66 = 11,736.08 : x
  2. Step 2: Convert to fraction form
    19,691.36/27,180.66 = 11,736.08/x
  3. Step 3: Cross multiply
    19,691.36x = 27,180.66 × 11,736.08
  4. Step 4: Simplify right side
    19,691.36x = 318,994,400.21
  5. Step 5: Solve for x
    x = 318,994,400.21/19,691.36
  6. Step 6: Final answer
    x = 16,199.71

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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.