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Finding the Fourth Proportional to 8,643.83, 12,958.02 and 3,377.61

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Solution

The fourth proportional to 8,643.83, 12,958.02 and 3,377.61 is: 5,063.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643.83 : 12,958.02 = 3,377.61 : x
  2. Step 2: Convert to fraction form
    8,643.83/12,958.02 = 3,377.61/x
  3. Step 3: Cross multiply
    8,643.83x = 12,958.02 × 3,377.61
  4. Step 4: Simplify right side
    8,643.83x = 43,767,137.93
  5. Step 5: Solve for x
    x = 43,767,137.93/8,643.83
  6. Step 6: Final answer
    x = 5,063.40

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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.