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Finding the Fourth Proportional to 8,266.71, 12,401.88 and 3,881.76

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Solution

The fourth proportional to 8,266.71, 12,401.88 and 3,881.76 is: 5,823.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,266.71 : 12,401.88 = 3,881.76 : x
  2. Step 2: Convert to fraction form
    8,266.71/12,401.88 = 3,881.76/x
  3. Step 3: Cross multiply
    8,266.71x = 12,401.88 × 3,881.76
  4. Step 4: Simplify right side
    8,266.71x = 48,141,121.71
  5. Step 5: Solve for x
    x = 48,141,121.71/8,266.71
  6. Step 6: Final answer
    x = 5,823.49

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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.