Home / 8,145.90-12,218.94-2,599.20

Finding the Fourth Proportional to 8,145.90, 12,218.94 and 2,599.20

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Solution

The fourth proportional to 8,145.90, 12,218.94 and 2,599.20 is: 3,898.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.90 : 12,218.94 = 2,599.20 : x
  2. Step 2: Convert to fraction form
    8,145.90/12,218.94 = 2,599.20/x
  3. Step 3: Cross multiply
    8,145.90x = 12,218.94 × 2,599.20
  4. Step 4: Simplify right side
    8,145.90x = 31,759,468.85
  5. Step 5: Solve for x
    x = 31,759,468.85/8,145.90
  6. Step 6: Final answer
    x = 3,898.83

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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.