Home / 8,115.53-12,173.09-2,568.11

Finding the Fourth Proportional to 8,115.53, 12,173.09 and 2,568.11

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Solution

The fourth proportional to 8,115.53, 12,173.09 and 2,568.11 is: 3,852.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.53 : 12,173.09 = 2,568.11 : x
  2. Step 2: Convert to fraction form
    8,115.53/12,173.09 = 2,568.11/x
  3. Step 3: Cross multiply
    8,115.53x = 12,173.09 × 2,568.11
  4. Step 4: Simplify right side
    8,115.53x = 31,261,760.45
  5. Step 5: Solve for x
    x = 31,261,760.45/8,115.53
  6. Step 6: Final answer
    x = 3,852.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.