Home / 8,115.14-11,198.91-4,389.14

Finding the Fourth Proportional to 8,115.14, 11,198.91 and 4,389.14

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Solution

The fourth proportional to 8,115.14, 11,198.91 and 4,389.14 is: 6,057.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.14 : 11,198.91 = 4,389.14 : x
  2. Step 2: Convert to fraction form
    8,115.14/11,198.91 = 4,389.14/x
  3. Step 3: Cross multiply
    8,115.14x = 11,198.91 × 4,389.14
  4. Step 4: Simplify right side
    8,115.14x = 49,153,527.84
  5. Step 5: Solve for x
    x = 49,153,527.84/8,115.14
  6. Step 6: Final answer
    x = 6,057.02

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.