Home / 8,236.50-12,358.18-3,309.64

Finding the Fourth Proportional to 8,236.50, 12,358.18 and 3,309.64

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Solution

The fourth proportional to 8,236.50, 12,358.18 and 3,309.64 is: 4,965.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.50 : 12,358.18 = 3,309.64 : x
  2. Step 2: Convert to fraction form
    8,236.50/12,358.18 = 3,309.64/x
  3. Step 3: Cross multiply
    8,236.50x = 12,358.18 × 3,309.64
  4. Step 4: Simplify right side
    8,236.50x = 40,901,126.86
  5. Step 5: Solve for x
    x = 40,901,126.86/8,236.50
  6. Step 6: Final answer
    x = 4,965.84

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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.