Home / 19,615.97-27,072.39-11,658.18

Finding the Fourth Proportional to 19,615.97, 27,072.39 and 11,658.18

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Solution

The fourth proportional to 19,615.97, 27,072.39 and 11,658.18 is: 16,089.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.97 : 27,072.39 = 11,658.18 : x
  2. Step 2: Convert to fraction form
    19,615.97/27,072.39 = 11,658.18/x
  3. Step 3: Cross multiply
    19,615.97x = 27,072.39 × 11,658.18
  4. Step 4: Simplify right side
    19,615.97x = 315,614,795.65
  5. Step 5: Solve for x
    x = 315,614,795.65/19,615.97
  6. Step 6: Final answer
    x = 16,089.69

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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.