Home / 15,236.92-21,027.26-8,521.82

Finding the Fourth Proportional to 15,236.92, 21,027.26 and 8,521.82

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Solution

The fourth proportional to 15,236.92, 21,027.26 and 8,521.82 is: 11,760.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,236.92 : 21,027.26 = 8,521.82 : x
  2. Step 2: Convert to fraction form
    15,236.92/21,027.26 = 8,521.82/x
  3. Step 3: Cross multiply
    15,236.92x = 21,027.26 × 8,521.82
  4. Step 4: Simplify right side
    15,236.92x = 179,190,524.81
  5. Step 5: Solve for x
    x = 179,190,524.81/15,236.92
  6. Step 6: Final answer
    x = 11,760.29

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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.