Home / 8,272.97-12,391.63-3,883.85

Finding the Fourth Proportional to 8,272.97, 12,391.63 and 3,883.85

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Solution

The fourth proportional to 8,272.97, 12,391.63 and 3,883.85 is: 5,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.97 : 12,391.63 = 3,883.85 : x
  2. Step 2: Convert to fraction form
    8,272.97/12,391.63 = 3,883.85/x
  3. Step 3: Cross multiply
    8,272.97x = 12,391.63 × 3,883.85
  4. Step 4: Simplify right side
    8,272.97x = 48,127,150.80
  5. Step 5: Solve for x
    x = 48,127,150.80/8,272.97
  6. Step 6: Final answer
    x = 5,817.40

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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.