Home / 19,918.32-27,489.69-11,964.66

Finding the Fourth Proportional to 19,918.32, 27,489.69 and 11,964.66

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Solution

The fourth proportional to 19,918.32, 27,489.69 and 11,964.66 is: 16,512.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.32 : 27,489.69 = 11,964.66 : x
  2. Step 2: Convert to fraction form
    19,918.32/27,489.69 = 11,964.66/x
  3. Step 3: Cross multiply
    19,918.32x = 27,489.69 × 11,964.66
  4. Step 4: Simplify right side
    19,918.32x = 328,904,794.36
  5. Step 5: Solve for x
    x = 328,904,794.36/19,918.32
  6. Step 6: Final answer
    x = 16,512.68

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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.