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Finding the Fourth Proportional to 8,172.54, 12,258.57 and 4,863.49

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Solution

The fourth proportional to 8,172.54, 12,258.57 and 4,863.49 is: 7,295.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.54 : 12,258.57 = 4,863.49 : x
  2. Step 2: Convert to fraction form
    8,172.54/12,258.57 = 4,863.49/x
  3. Step 3: Cross multiply
    8,172.54x = 12,258.57 × 4,863.49
  4. Step 4: Simplify right side
    8,172.54x = 59,619,432.61
  5. Step 5: Solve for x
    x = 59,619,432.61/8,172.54
  6. Step 6: Final answer
    x = 7,295.09

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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.