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Finding the Fourth Proportional to 8,369.40, 12,554.10 and 3,174.60

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Solution

The fourth proportional to 8,369.40, 12,554.10 and 3,174.60 is: 4,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.40 : 12,554.10 = 3,174.60 : x
  2. Step 2: Convert to fraction form
    8,369.40/12,554.10 = 3,174.60/x
  3. Step 3: Cross multiply
    8,369.40x = 12,554.10 × 3,174.60
  4. Step 4: Simplify right side
    8,369.40x = 39,854,245.86
  5. Step 5: Solve for x
    x = 39,854,245.86/8,369.40
  6. Step 6: Final answer
    x = 4,761.90

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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.