Home / 19,716.82-27,208.83-11,218.75

Finding the Fourth Proportional to 19,716.82, 27,208.83 and 11,218.75

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Solution

The fourth proportional to 19,716.82, 27,208.83 and 11,218.75 is: 15,481.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,716.82 : 27,208.83 = 11,218.75 : x
  2. Step 2: Convert to fraction form
    19,716.82/27,208.83 = 11,218.75/x
  3. Step 3: Cross multiply
    19,716.82x = 27,208.83 × 11,218.75
  4. Step 4: Simplify right side
    19,716.82x = 305,249,035.61
  5. Step 5: Solve for x
    x = 305,249,035.61/19,716.82
  6. Step 6: Final answer
    x = 15,481.66

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1.5x scale

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.