Home / 8,143.44-12,209.68-3,758.48

Finding the Fourth Proportional to 8,143.44, 12,209.68 and 3,758.48

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Solution

The fourth proportional to 8,143.44, 12,209.68 and 3,758.48 is: 5,635.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143.44 : 12,209.68 = 3,758.48 : x
  2. Step 2: Convert to fraction form
    8,143.44/12,209.68 = 3,758.48/x
  3. Step 3: Cross multiply
    8,143.44x = 12,209.68 × 3,758.48
  4. Step 4: Simplify right side
    8,143.44x = 45,889,838.09
  5. Step 5: Solve for x
    x = 45,889,838.09/8,143.44
  6. Step 6: Final answer
    x = 5,635.19

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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.