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Finding the Fourth Proportional to 8,393.02, 12,578.49 and 3,459.92

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Solution

The fourth proportional to 8,393.02, 12,578.49 and 3,459.92 is: 5,185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.02 : 12,578.49 = 3,459.92 : x
  2. Step 2: Convert to fraction form
    8,393.02/12,578.49 = 3,459.92/x
  3. Step 3: Cross multiply
    8,393.02x = 12,578.49 × 3,459.92
  4. Step 4: Simplify right side
    8,393.02x = 43,520,506.23
  5. Step 5: Solve for x
    x = 43,520,506.23/8,393.02
  6. Step 6: Final answer
    x = 5,185.32

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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.