Home / 10,961.62-15,229.07-10,830.40

Finding the Fourth Proportional to 10,961.62, 15,229.07 and 10,830.40

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Solution

The fourth proportional to 10,961.62, 15,229.07 and 10,830.40 is: 15,046.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.62 : 15,229.07 = 10,830.40 : x
  2. Step 2: Convert to fraction form
    10,961.62/15,229.07 = 10,830.40/x
  3. Step 3: Cross multiply
    10,961.62x = 15,229.07 × 10,830.40
  4. Step 4: Simplify right side
    10,961.62x = 164,936,919.73
  5. Step 5: Solve for x
    x = 164,936,919.73/10,961.62
  6. Step 6: Final answer
    x = 15,046.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.