Home / 15,933.92-21,991.44-13,277.12

Finding the Fourth Proportional to 15,933.92, 21,991.44 and 13,277.12

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Solution

The fourth proportional to 15,933.92, 21,991.44 and 13,277.12 is: 18,324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.92 : 21,991.44 = 13,277.12 : x
  2. Step 2: Convert to fraction form
    15,933.92/21,991.44 = 13,277.12/x
  3. Step 3: Cross multiply
    15,933.92x = 21,991.44 × 13,277.12
  4. Step 4: Simplify right side
    15,933.92x = 291,982,987.85
  5. Step 5: Solve for x
    x = 291,982,987.85/15,933.92
  6. Step 6: Final answer
    x = 18,324.62

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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.