Home / 8,074.25-12,116.94-3,143.91

Finding the Fourth Proportional to 8,074.25, 12,116.94 and 3,143.91

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Solution

The fourth proportional to 8,074.25, 12,116.94 and 3,143.91 is: 4,718.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.25 : 12,116.94 = 3,143.91 : x
  2. Step 2: Convert to fraction form
    8,074.25/12,116.94 = 3,143.91/x
  3. Step 3: Cross multiply
    8,074.25x = 12,116.94 × 3,143.91
  4. Step 4: Simplify right side
    8,074.25x = 38,094,568.84
  5. Step 5: Solve for x
    x = 38,094,568.84/8,074.25
  6. Step 6: Final answer
    x = 4,718.03

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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.