Home / 8,151.84-12,229.13-2,528.21

Finding the Fourth Proportional to 8,151.84, 12,229.13 and 2,528.21

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Solution

The fourth proportional to 8,151.84, 12,229.13 and 2,528.21 is: 3,792.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.84 : 12,229.13 = 2,528.21 : x
  2. Step 2: Convert to fraction form
    8,151.84/12,229.13 = 2,528.21/x
  3. Step 3: Cross multiply
    8,151.84x = 12,229.13 × 2,528.21
  4. Step 4: Simplify right side
    8,151.84x = 30,917,845.65
  5. Step 5: Solve for x
    x = 30,917,845.65/8,151.84
  6. Step 6: Final answer
    x = 3,792.74

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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.