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Finding the Fourth Proportional to 8,119.67, 11,195.08 and 6,709.05

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Solution

The fourth proportional to 8,119.67, 11,195.08 and 6,709.05 is: 9,250.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.67 : 11,195.08 = 6,709.05 : x
  2. Step 2: Convert to fraction form
    8,119.67/11,195.08 = 6,709.05/x
  3. Step 3: Cross multiply
    8,119.67x = 11,195.08 × 6,709.05
  4. Step 4: Simplify right side
    8,119.67x = 75,108,334.70
  5. Step 5: Solve for x
    x = 75,108,334.70/8,119.67
  6. Step 6: Final answer
    x = 9,250.18

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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.