Home / 8,091.24-12,139.78-2,827.03

Finding the Fourth Proportional to 8,091.24, 12,139.78 and 2,827.03

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Solution

The fourth proportional to 8,091.24, 12,139.78 and 2,827.03 is: 4,241.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.24 : 12,139.78 = 2,827.03 : x
  2. Step 2: Convert to fraction form
    8,091.24/12,139.78 = 2,827.03/x
  3. Step 3: Cross multiply
    8,091.24x = 12,139.78 × 2,827.03
  4. Step 4: Simplify right side
    8,091.24x = 34,319,522.25
  5. Step 5: Solve for x
    x = 34,319,522.25/8,091.24
  6. Step 6: Final answer
    x = 4,241.57

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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.