Home / 8,266.17-12,401.28-3,878.55

Finding the Fourth Proportional to 8,266.17, 12,401.28 and 3,878.55

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Solution

The fourth proportional to 8,266.17, 12,401.28 and 3,878.55 is: 5,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.17 : 12,401.28 = 3,878.55 : x
  2. Step 2: Convert to fraction form
    8,266.17/12,401.28 = 3,878.55/x
  3. Step 3: Cross multiply
    8,266.17x = 12,401.28 × 3,878.55
  4. Step 4: Simplify right side
    8,266.17x = 48,098,984.54
  5. Step 5: Solve for x
    x = 48,098,984.54/8,266.17
  6. Step 6: Final answer
    x = 5,818.78

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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.