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Finding the Fourth Proportional to 8,418.62, 12,627.03 and 3,738.71

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Solution

The fourth proportional to 8,418.62, 12,627.03 and 3,738.71 is: 5,607.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.62 : 12,627.03 = 3,738.71 : x
  2. Step 2: Convert to fraction form
    8,418.62/12,627.03 = 3,738.71/x
  3. Step 3: Cross multiply
    8,418.62x = 12,627.03 × 3,738.71
  4. Step 4: Simplify right side
    8,418.62x = 47,208,803.33
  5. Step 5: Solve for x
    x = 47,208,803.33/8,418.62
  6. Step 6: Final answer
    x = 5,607.67

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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.