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Finding the Fourth Proportional to 8,492.59, 12,739.56 and 3,230.12

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Solution

The fourth proportional to 8,492.59, 12,739.56 and 3,230.12 is: 4,845.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.59 : 12,739.56 = 3,230.12 : x
  2. Step 2: Convert to fraction form
    8,492.59/12,739.56 = 3,230.12/x
  3. Step 3: Cross multiply
    8,492.59x = 12,739.56 × 3,230.12
  4. Step 4: Simplify right side
    8,492.59x = 41,150,243.85
  5. Step 5: Solve for x
    x = 41,150,243.85/8,492.59
  6. Step 6: Final answer
    x = 4,845.43

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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.