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Finding the Fourth Proportional to 8,682.04, 12,992.82 and 7,103.80

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Solution

The fourth proportional to 8,682.04, 12,992.82 and 7,103.80 is: 10,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.04 : 12,992.82 = 7,103.80 : x
  2. Step 2: Convert to fraction form
    8,682.04/12,992.82 = 7,103.80/x
  3. Step 3: Cross multiply
    8,682.04x = 12,992.82 × 7,103.80
  4. Step 4: Simplify right side
    8,682.04x = 92,298,394.72
  5. Step 5: Solve for x
    x = 92,298,394.72/8,682.04
  6. Step 6: Final answer
    x = 10,630.96

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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.