Home / 8,115.24-12,173.58-3,185.04

Finding the Fourth Proportional to 8,115.24, 12,173.58 and 3,185.04

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Solution

The fourth proportional to 8,115.24, 12,173.58 and 3,185.04 is: 4,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.24 : 12,173.58 = 3,185.04 : x
  2. Step 2: Convert to fraction form
    8,115.24/12,173.58 = 3,185.04/x
  3. Step 3: Cross multiply
    8,115.24x = 12,173.58 × 3,185.04
  4. Step 4: Simplify right side
    8,115.24x = 38,773,339.24
  5. Step 5: Solve for x
    x = 38,773,339.24/8,115.24
  6. Step 6: Final answer
    x = 4,777.84

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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.