Home / 11,311.80-16,968.60-3,520.62

Finding the Fourth Proportional to 11,311.80, 16,968.60 and 3,520.62

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Solution

The fourth proportional to 11,311.80, 16,968.60 and 3,520.62 is: 5,281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.80 : 16,968.60 = 3,520.62 : x
  2. Step 2: Convert to fraction form
    11,311.80/16,968.60 = 3,520.62/x
  3. Step 3: Cross multiply
    11,311.80x = 16,968.60 × 3,520.62
  4. Step 4: Simplify right side
    11,311.80x = 59,739,992.53
  5. Step 5: Solve for x
    x = 59,739,992.53/11,311.80
  6. Step 6: Final answer
    x = 5,281.21

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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.