Home / 10,121.50-15,182.25-3,196

Finding the Fourth Proportional to 10,121.50, 15,182.25 and 3,196

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Solution

The fourth proportional to 10,121.50, 15,182.25 and 3,196 is: 4,794

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.50 : 15,182.25 = 3,196 : x
  2. Step 2: Convert to fraction form
    10,121.50/15,182.25 = 3,196/x
  3. Step 3: Cross multiply
    10,121.50x = 15,182.25 × 3,196
  4. Step 4: Simplify right side
    10,121.50x = 48,522,471
  5. Step 5: Solve for x
    x = 48,522,471/10,121.50
  6. Step 6: Final answer
    x = 4,794

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.