Home / 12,245.20-18,367.46-3,480.10

Finding the Fourth Proportional to 12,245.20, 18,367.46 and 3,480.10

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Solution

The fourth proportional to 12,245.20, 18,367.46 and 3,480.10 is: 5,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.20 : 18,367.46 = 3,480.10 : x
  2. Step 2: Convert to fraction form
    12,245.20/18,367.46 = 3,480.10/x
  3. Step 3: Cross multiply
    12,245.20x = 18,367.46 × 3,480.10
  4. Step 4: Simplify right side
    12,245.20x = 63,920,580.15
  5. Step 5: Solve for x
    x = 63,920,580.15/12,245.20
  6. Step 6: Final answer
    x = 5,220.05

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Similar ratio
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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.