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Finding the Fourth Proportional to 8,175.85, 12,269.99 and 5,990.29

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Solution

The fourth proportional to 8,175.85, 12,269.99 and 5,990.29 is: 8,989.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,175.85 : 12,269.99 = 5,990.29 : x
  2. Step 2: Convert to fraction form
    8,175.85/12,269.99 = 5,990.29/x
  3. Step 3: Cross multiply
    8,175.85x = 12,269.99 × 5,990.29
  4. Step 4: Simplify right side
    8,175.85x = 73,500,768.45
  5. Step 5: Solve for x
    x = 73,500,768.45/8,175.85
  6. Step 6: Final answer
    x = 8,989.98

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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.