Home / 11,992.91-17,987.75-3,228.35

Finding the Fourth Proportional to 11,992.91, 17,987.75 and 3,228.35

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Solution

The fourth proportional to 11,992.91, 17,987.75 and 3,228.35 is: 4,842.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.91 : 17,987.75 = 3,228.35 : x
  2. Step 2: Convert to fraction form
    11,992.91/17,987.75 = 3,228.35/x
  3. Step 3: Cross multiply
    11,992.91x = 17,987.75 × 3,228.35
  4. Step 4: Simplify right side
    11,992.91x = 58,070,781.54
  5. Step 5: Solve for x
    x = 58,070,781.54/11,992.91
  6. Step 6: Final answer
    x = 4,842.09

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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.