Home / 12,227.22-18,340.96-3,907.20

Finding the Fourth Proportional to 12,227.22, 18,340.96 and 3,907.20

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Solution

The fourth proportional to 12,227.22, 18,340.96 and 3,907.20 is: 5,860.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,227.22 : 18,340.96 = 3,907.20 : x
  2. Step 2: Convert to fraction form
    12,227.22/18,340.96 = 3,907.20/x
  3. Step 3: Cross multiply
    12,227.22x = 18,340.96 × 3,907.20
  4. Step 4: Simplify right side
    12,227.22x = 71,661,798.91
  5. Step 5: Solve for x
    x = 71,661,798.91/12,227.22
  6. Step 6: Final answer
    x = 5,860.84

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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.