Home / 18,822.20-25,991.16-11,760.68

Finding the Fourth Proportional to 18,822.20, 25,991.16 and 11,760.68

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Solution

The fourth proportional to 18,822.20, 25,991.16 and 11,760.68 is: 16,240.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822.20 : 25,991.16 = 11,760.68 : x
  2. Step 2: Convert to fraction form
    18,822.20/25,991.16 = 11,760.68/x
  3. Step 3: Cross multiply
    18,822.20x = 25,991.16 × 11,760.68
  4. Step 4: Simplify right side
    18,822.20x = 305,673,715.59
  5. Step 5: Solve for x
    x = 305,673,715.59/18,822.20
  6. Step 6: Final answer
    x = 16,240.06

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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.