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Finding the Fourth Proportional to 8,499.67, 12,692.21 and 6,942.73

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Solution

The fourth proportional to 8,499.67, 12,692.21 and 6,942.73 is: 10,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,499.67 : 12,692.21 = 6,942.73 : x
  2. Step 2: Convert to fraction form
    8,499.67/12,692.21 = 6,942.73/x
  3. Step 3: Cross multiply
    8,499.67x = 12,692.21 × 6,942.73
  4. Step 4: Simplify right side
    8,499.67x = 88,118,587.13
  5. Step 5: Solve for x
    x = 88,118,587.13/8,499.67
  6. Step 6: Final answer
    x = 10,367.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.