Home / 8,021.38-12,028.98-2,755.40

Finding the Fourth Proportional to 8,021.38, 12,028.98 and 2,755.40

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Solution

The fourth proportional to 8,021.38, 12,028.98 and 2,755.40 is: 4,132.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.38 : 12,028.98 = 2,755.40 : x
  2. Step 2: Convert to fraction form
    8,021.38/12,028.98 = 2,755.40/x
  3. Step 3: Cross multiply
    8,021.38x = 12,028.98 × 2,755.40
  4. Step 4: Simplify right side
    8,021.38x = 33,144,651.49
  5. Step 5: Solve for x
    x = 33,144,651.49/8,021.38
  6. Step 6: Final answer
    x = 4,132.04

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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.