Home / 8,109.09-11,190.56-4,383.09

Finding the Fourth Proportional to 8,109.09, 11,190.56 and 4,383.09

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Solution

The fourth proportional to 8,109.09, 11,190.56 and 4,383.09 is: 6,048.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.09 : 11,190.56 = 4,383.09 : x
  2. Step 2: Convert to fraction form
    8,109.09/11,190.56 = 4,383.09/x
  3. Step 3: Cross multiply
    8,109.09x = 11,190.56 × 4,383.09
  4. Step 4: Simplify right side
    8,109.09x = 49,049,209.71
  5. Step 5: Solve for x
    x = 49,049,209.71/8,109.09
  6. Step 6: Final answer
    x = 6,048.67

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Half scale
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Double scale
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Similar ratio
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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.