Home / 19,661.54-27,133.18-11,163.02

Finding the Fourth Proportional to 19,661.54, 27,133.18 and 11,163.02

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Solution

The fourth proportional to 19,661.54, 27,133.18 and 11,163.02 is: 15,405.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.54 : 27,133.18 = 11,163.02 : x
  2. Step 2: Convert to fraction form
    19,661.54/27,133.18 = 11,163.02/x
  3. Step 3: Cross multiply
    19,661.54x = 27,133.18 × 11,163.02
  4. Step 4: Simplify right side
    19,661.54x = 302,888,067.43
  5. Step 5: Solve for x
    x = 302,888,067.43/19,661.54
  6. Step 6: Final answer
    x = 15,405.11

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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.