Home / 15,016.82-20,722.38-8,302.04

Finding the Fourth Proportional to 15,016.82, 20,722.38 and 8,302.04

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Solution

The fourth proportional to 15,016.82, 20,722.38 and 8,302.04 is: 11,456.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.82 : 20,722.38 = 8,302.04 : x
  2. Step 2: Convert to fraction form
    15,016.82/20,722.38 = 8,302.04/x
  3. Step 3: Cross multiply
    15,016.82x = 20,722.38 × 8,302.04
  4. Step 4: Simplify right side
    15,016.82x = 172,038,027.66
  5. Step 5: Solve for x
    x = 172,038,027.66/15,016.82
  6. Step 6: Final answer
    x = 11,456.36

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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.