Home / 11,078.87-16,612.74-3,680.73

Finding the Fourth Proportional to 11,078.87, 16,612.74 and 3,680.73

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Solution

The fourth proportional to 11,078.87, 16,612.74 and 3,680.73 is: 5,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.87 : 16,612.74 = 3,680.73 : x
  2. Step 2: Convert to fraction form
    11,078.87/16,612.74 = 3,680.73/x
  3. Step 3: Cross multiply
    11,078.87x = 16,612.74 × 3,680.73
  4. Step 4: Simplify right side
    11,078.87x = 61,147,010.50
  5. Step 5: Solve for x
    x = 61,147,010.50/11,078.87
  6. Step 6: Final answer
    x = 5,519.25

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Half scale
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Double scale
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1.5x scale

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.