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Finding the Fourth Proportional to 8,369.79, 12,560.78 and 6,745.95

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Solution

The fourth proportional to 8,369.79, 12,560.78 and 6,745.95 is: 10,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.79 : 12,560.78 = 6,745.95 : x
  2. Step 2: Convert to fraction form
    8,369.79/12,560.78 = 6,745.95/x
  3. Step 3: Cross multiply
    8,369.79x = 12,560.78 × 6,745.95
  4. Step 4: Simplify right side
    8,369.79x = 84,734,367.20
  5. Step 5: Solve for x
    x = 84,734,367.20/8,369.79
  6. Step 6: Final answer
    x = 10,123.83

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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.