Home / 8,204.20-12,306.47-2,939.55

Finding the Fourth Proportional to 8,204.20, 12,306.47 and 2,939.55

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Solution

The fourth proportional to 8,204.20, 12,306.47 and 2,939.55 is: 4,409.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,204.20 : 12,306.47 = 2,939.55 : x
  2. Step 2: Convert to fraction form
    8,204.20/12,306.47 = 2,939.55/x
  3. Step 3: Cross multiply
    8,204.20x = 12,306.47 × 2,939.55
  4. Step 4: Simplify right side
    8,204.20x = 36,175,483.89
  5. Step 5: Solve for x
    x = 36,175,483.89/8,204.20
  6. Step 6: Final answer
    x = 4,409.39

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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.