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Finding the Fourth Proportional to 8,179.76, 12,271.62 and 2,633.63

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Solution

The fourth proportional to 8,179.76, 12,271.62 and 2,633.63 is: 3,951.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.76 : 12,271.62 = 2,633.63 : x
  2. Step 2: Convert to fraction form
    8,179.76/12,271.62 = 2,633.63/x
  3. Step 3: Cross multiply
    8,179.76x = 12,271.62 × 2,633.63
  4. Step 4: Simplify right side
    8,179.76x = 32,318,845.22
  5. Step 5: Solve for x
    x = 32,318,845.22/8,179.76
  6. Step 6: Final answer
    x = 3,951.08

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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.