Home / 11,518.89-17,257.35-8,001.46

Finding the Fourth Proportional to 11,518.89, 17,257.35 and 8,001.46

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Solution

The fourth proportional to 11,518.89, 17,257.35 and 8,001.46 is: 11,987.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.89 : 17,257.35 = 8,001.46 : x
  2. Step 2: Convert to fraction form
    11,518.89/17,257.35 = 8,001.46/x
  3. Step 3: Cross multiply
    11,518.89x = 17,257.35 × 8,001.46
  4. Step 4: Simplify right side
    11,518.89x = 138,083,995.73
  5. Step 5: Solve for x
    x = 138,083,995.73/11,518.89
  6. Step 6: Final answer
    x = 11,987.61

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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.