Home / 11,022.20-15,193.14-8,660.28

Finding the Fourth Proportional to 11,022.20, 15,193.14 and 8,660.28

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Solution

The fourth proportional to 11,022.20, 15,193.14 and 8,660.28 is: 11,937.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,022.20 : 15,193.14 = 8,660.28 : x
  2. Step 2: Convert to fraction form
    11,022.20/15,193.14 = 8,660.28/x
  3. Step 3: Cross multiply
    11,022.20x = 15,193.14 × 8,660.28
  4. Step 4: Simplify right side
    11,022.20x = 131,576,846.48
  5. Step 5: Solve for x
    x = 131,576,846.48/11,022.20
  6. Step 6: Final answer
    x = 11,937.44

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Double scale
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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.