Home / 8,121.22-12,182.26-2,574.99

Finding the Fourth Proportional to 8,121.22, 12,182.26 and 2,574.99

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Solution

The fourth proportional to 8,121.22, 12,182.26 and 2,574.99 is: 3,862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.22 : 12,182.26 = 2,574.99 : x
  2. Step 2: Convert to fraction form
    8,121.22/12,182.26 = 2,574.99/x
  3. Step 3: Cross multiply
    8,121.22x = 12,182.26 × 2,574.99
  4. Step 4: Simplify right side
    8,121.22x = 31,369,197.68
  5. Step 5: Solve for x
    x = 31,369,197.68/8,121.22
  6. Step 6: Final answer
    x = 3,862.62

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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.