Home / 8,119.08-12,180.42-2,574.12

Finding the Fourth Proportional to 8,119.08, 12,180.42 and 2,574.12

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Solution

The fourth proportional to 8,119.08, 12,180.42 and 2,574.12 is: 3,861.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.08 : 12,180.42 = 2,574.12 : x
  2. Step 2: Convert to fraction form
    8,119.08/12,180.42 = 2,574.12/x
  3. Step 3: Cross multiply
    8,119.08x = 12,180.42 × 2,574.12
  4. Step 4: Simplify right side
    8,119.08x = 31,353,862.73
  5. Step 5: Solve for x
    x = 31,353,862.73/8,119.08
  6. Step 6: Final answer
    x = 3,861.75

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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.