Home / 19,661.15-27,133.04-11,163.65

Finding the Fourth Proportional to 19,661.15, 27,133.04 and 11,163.65

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Solution

The fourth proportional to 19,661.15, 27,133.04 and 11,163.65 is: 15,406.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,661.15 : 27,133.04 = 11,163.65 : x
  2. Step 2: Convert to fraction form
    19,661.15/27,133.04 = 11,163.65/x
  3. Step 3: Cross multiply
    19,661.15x = 27,133.04 × 11,163.65
  4. Step 4: Simplify right side
    19,661.15x = 302,903,654.24
  5. Step 5: Solve for x
    x = 302,903,654.24/19,661.15
  6. Step 6: Final answer
    x = 15,406.20

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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.