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Finding the Fourth Proportional to 8,258.62, 12,389.82 and 3,579.41

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Solution

The fourth proportional to 8,258.62, 12,389.82 and 3,579.41 is: 5,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.62 : 12,389.82 = 3,579.41 : x
  2. Step 2: Convert to fraction form
    8,258.62/12,389.82 = 3,579.41/x
  3. Step 3: Cross multiply
    8,258.62x = 12,389.82 × 3,579.41
  4. Step 4: Simplify right side
    8,258.62x = 44,348,227.71
  5. Step 5: Solve for x
    x = 44,348,227.71/8,258.62
  6. Step 6: Final answer
    x = 5,369.94

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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.