Home / 8,105.66-11,185.98-4,568.78

Finding the Fourth Proportional to 8,105.66, 11,185.98 and 4,568.78

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Solution

The fourth proportional to 8,105.66, 11,185.98 and 4,568.78 is: 6,305.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.66 : 11,185.98 = 4,568.78 : x
  2. Step 2: Convert to fraction form
    8,105.66/11,185.98 = 4,568.78/x
  3. Step 3: Cross multiply
    8,105.66x = 11,185.98 × 4,568.78
  4. Step 4: Simplify right side
    8,105.66x = 51,106,281.70
  5. Step 5: Solve for x
    x = 51,106,281.70/8,105.66
  6. Step 6: Final answer
    x = 6,305.01

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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.