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Finding the Fourth Proportional to 8,651.55, 12,977.96 and 3,104.94

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Solution

The fourth proportional to 8,651.55, 12,977.96 and 3,104.94 is: 4,657.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.55 : 12,977.96 = 3,104.94 : x
  2. Step 2: Convert to fraction form
    8,651.55/12,977.96 = 3,104.94/x
  3. Step 3: Cross multiply
    8,651.55x = 12,977.96 × 3,104.94
  4. Step 4: Simplify right side
    8,651.55x = 40,295,747.26
  5. Step 5: Solve for x
    x = 40,295,747.26/8,651.55
  6. Step 6: Final answer
    x = 4,657.63

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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.