Home / 12,245.12-18,367.84-3,480.02

Finding the Fourth Proportional to 12,245.12, 18,367.84 and 3,480.02

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Solution

The fourth proportional to 12,245.12, 18,367.84 and 3,480.02 is: 5,220.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.12 : 18,367.84 = 3,480.02 : x
  2. Step 2: Convert to fraction form
    12,245.12/18,367.84 = 3,480.02/x
  3. Step 3: Cross multiply
    12,245.12x = 18,367.84 × 3,480.02
  4. Step 4: Simplify right side
    12,245.12x = 63,920,450.56
  5. Step 5: Solve for x
    x = 63,920,450.56/12,245.12
  6. Step 6: Final answer
    x = 5,220.08

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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.