Home / 8,107.85-11,188.84-4,571.05

Finding the Fourth Proportional to 8,107.85, 11,188.84 and 4,571.05

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Solution

The fourth proportional to 8,107.85, 11,188.84 and 4,571.05 is: 6,308.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,107.85 : 11,188.84 = 4,571.05 : x
  2. Step 2: Convert to fraction form
    8,107.85/11,188.84 = 4,571.05/x
  3. Step 3: Cross multiply
    8,107.85x = 11,188.84 × 4,571.05
  4. Step 4: Simplify right side
    8,107.85x = 51,144,691.14
  5. Step 5: Solve for x
    x = 51,144,691.14/8,107.85
  6. Step 6: Final answer
    x = 6,308.05

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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.