Home / 19,615.80-27,067.78-11,656.49

Finding the Fourth Proportional to 19,615.80, 27,067.78 and 11,656.49

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Solution

The fourth proportional to 19,615.80, 27,067.78 and 11,656.49 is: 16,084.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.80 : 27,067.78 = 11,656.49 : x
  2. Step 2: Convert to fraction form
    19,615.80/27,067.78 = 11,656.49/x
  3. Step 3: Cross multiply
    19,615.80x = 27,067.78 × 11,656.49
  4. Step 4: Simplify right side
    19,615.80x = 315,515,186.12
  5. Step 5: Solve for x
    x = 315,515,186.12/19,615.80
  6. Step 6: Final answer
    x = 16,084.74

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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.