Home / 12,203.22-18,306.06-3,438.21

Finding the Fourth Proportional to 12,203.22, 18,306.06 and 3,438.21

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Solution

The fourth proportional to 12,203.22, 18,306.06 and 3,438.21 is: 5,157.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203.22 : 18,306.06 = 3,438.21 : x
  2. Step 2: Convert to fraction form
    12,203.22/18,306.06 = 3,438.21/x
  3. Step 3: Cross multiply
    12,203.22x = 18,306.06 × 3,438.21
  4. Step 4: Simplify right side
    12,203.22x = 62,940,078.55
  5. Step 5: Solve for x
    x = 62,940,078.55/12,203.22
  6. Step 6: Final answer
    x = 5,157.66

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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.