Home / 8,129.42-12,194.12-2,935.30

Finding the Fourth Proportional to 8,129.42, 12,194.12 and 2,935.30

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Solution

The fourth proportional to 8,129.42, 12,194.12 and 2,935.30 is: 4,402.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.42 : 12,194.12 = 2,935.30 : x
  2. Step 2: Convert to fraction form
    8,129.42/12,194.12 = 2,935.30/x
  3. Step 3: Cross multiply
    8,129.42x = 12,194.12 × 2,935.30
  4. Step 4: Simplify right side
    8,129.42x = 35,793,400.44
  5. Step 5: Solve for x
    x = 35,793,400.44/8,129.42
  6. Step 6: Final answer
    x = 4,402.95

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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.