Home / 19,691.44-29,511.65-7,998.28

Finding the Fourth Proportional to 19,691.44, 29,511.65 and 7,998.28

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Solution

The fourth proportional to 19,691.44, 29,511.65 and 7,998.28 is: 11,987.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.44 : 29,511.65 = 7,998.28 : x
  2. Step 2: Convert to fraction form
    19,691.44/29,511.65 = 7,998.28/x
  3. Step 3: Cross multiply
    19,691.44x = 29,511.65 × 7,998.28
  4. Step 4: Simplify right side
    19,691.44x = 236,042,399.97
  5. Step 5: Solve for x
    x = 236,042,399.97/19,691.44
  6. Step 6: Final answer
    x = 11,987.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.