Home / 8,186.38-12,283.20-4,289.86

Finding the Fourth Proportional to 8,186.38, 12,283.20 and 4,289.86

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Solution

The fourth proportional to 8,186.38, 12,283.20 and 4,289.86 is: 6,436.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.38 : 12,283.20 = 4,289.86 : x
  2. Step 2: Convert to fraction form
    8,186.38/12,283.20 = 4,289.86/x
  3. Step 3: Cross multiply
    8,186.38x = 12,283.20 × 4,289.86
  4. Step 4: Simplify right side
    8,186.38x = 52,693,208.35
  5. Step 5: Solve for x
    x = 52,693,208.35/8,186.38
  6. Step 6: Final answer
    x = 6,436.69

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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.