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Finding the Fourth Proportional to 8,621.41, 12,937.03 and 3,355.74

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Solution

The fourth proportional to 8,621.41, 12,937.03 and 3,355.74 is: 5,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.41 : 12,937.03 = 3,355.74 : x
  2. Step 2: Convert to fraction form
    8,621.41/12,937.03 = 3,355.74/x
  3. Step 3: Cross multiply
    8,621.41x = 12,937.03 × 3,355.74
  4. Step 4: Simplify right side
    8,621.41x = 43,413,300.66
  5. Step 5: Solve for x
    x = 43,413,300.66/8,621.41
  6. Step 6: Final answer
    x = 5,035.52

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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.