Home / 15,933.72-21,990.92-11,472.24

Finding the Fourth Proportional to 15,933.72, 21,990.92 and 11,472.24

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Solution

The fourth proportional to 15,933.72, 21,990.92 and 11,472.24 is: 15,833.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.72 : 21,990.92 = 11,472.24 : x
  2. Step 2: Convert to fraction form
    15,933.72/21,990.92 = 11,472.24/x
  3. Step 3: Cross multiply
    15,933.72x = 21,990.92 × 11,472.24
  4. Step 4: Simplify right side
    15,933.72x = 252,285,112.06
  5. Step 5: Solve for x
    x = 252,285,112.06/15,933.72
  6. Step 6: Final answer
    x = 15,833.41

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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.