Home / 12,202.85-18,310.41-4,812.60

Finding the Fourth Proportional to 12,202.85, 18,310.41 and 4,812.60

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Solution

The fourth proportional to 12,202.85, 18,310.41 and 4,812.60 is: 7,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,202.85 : 18,310.41 = 4,812.60 : x
  2. Step 2: Convert to fraction form
    12,202.85/18,310.41 = 4,812.60/x
  3. Step 3: Cross multiply
    12,202.85x = 18,310.41 × 4,812.60
  4. Step 4: Simplify right side
    12,202.85x = 88,120,679.17
  5. Step 5: Solve for x
    x = 88,120,679.17/12,202.85
  6. Step 6: Final answer
    x = 7,221.32

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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.