Home / 8,445.62-12,670.20-3,180.53

Finding the Fourth Proportional to 8,445.62, 12,670.20 and 3,180.53

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Solution

The fourth proportional to 8,445.62, 12,670.20 and 3,180.53 is: 4,771.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.62 : 12,670.20 = 3,180.53 : x
  2. Step 2: Convert to fraction form
    8,445.62/12,670.20 = 3,180.53/x
  3. Step 3: Cross multiply
    8,445.62x = 12,670.20 × 3,180.53
  4. Step 4: Simplify right side
    8,445.62x = 40,297,982.88
  5. Step 5: Solve for x
    x = 40,297,982.88/8,445.62
  6. Step 6: Final answer
    x = 4,771.46

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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.