Home / 15,016.19-20,722.72-8,301.92

Finding the Fourth Proportional to 15,016.19, 20,722.72 and 8,301.92

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Solution

The fourth proportional to 15,016.19, 20,722.72 and 8,301.92 is: 11,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.19 : 20,722.72 = 8,301.92 : x
  2. Step 2: Convert to fraction form
    15,016.19/20,722.72 = 8,301.92/x
  3. Step 3: Cross multiply
    15,016.19x = 20,722.72 × 8,301.92
  4. Step 4: Simplify right side
    15,016.19x = 172,038,239.25
  5. Step 5: Solve for x
    x = 172,038,239.25/15,016.19
  6. Step 6: Final answer
    x = 11,456.85

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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.