Home / 8,060.85-12,086.91-3,129.17

Finding the Fourth Proportional to 8,060.85, 12,086.91 and 3,129.17

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Solution

The fourth proportional to 8,060.85, 12,086.91 and 3,129.17 is: 4,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,060.85 : 12,086.91 = 3,129.17 : x
  2. Step 2: Convert to fraction form
    8,060.85/12,086.91 = 3,129.17/x
  3. Step 3: Cross multiply
    8,060.85x = 12,086.91 × 3,129.17
  4. Step 4: Simplify right side
    8,060.85x = 37,821,935.73
  5. Step 5: Solve for x
    x = 37,821,935.73/8,060.85
  6. Step 6: Final answer
    x = 4,692.05

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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.