Home / 8,169.78-12,256.27-2,622.70

Finding the Fourth Proportional to 8,169.78, 12,256.27 and 2,622.70

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Solution

The fourth proportional to 8,169.78, 12,256.27 and 2,622.70 is: 3,934.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.78 : 12,256.27 = 2,622.70 : x
  2. Step 2: Convert to fraction form
    8,169.78/12,256.27 = 2,622.70/x
  3. Step 3: Cross multiply
    8,169.78x = 12,256.27 × 2,622.70
  4. Step 4: Simplify right side
    8,169.78x = 32,144,528.09
  5. Step 5: Solve for x
    x = 32,144,528.09/8,169.78
  6. Step 6: Final answer
    x = 3,934.56

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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.