Home / 12,104.48-18,163.28-11,223.20

Finding the Fourth Proportional to 12,104.48, 18,163.28 and 11,223.20

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Solution

The fourth proportional to 12,104.48, 18,163.28 and 11,223.20 is: 16,840.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,104.48 : 18,163.28 = 11,223.20 : x
  2. Step 2: Convert to fraction form
    12,104.48/18,163.28 = 11,223.20/x
  3. Step 3: Cross multiply
    12,104.48x = 18,163.28 × 11,223.20
  4. Step 4: Simplify right side
    12,104.48x = 203,850,124.10
  5. Step 5: Solve for x
    x = 203,850,124.10/12,104.48
  6. Step 6: Final answer
    x = 16,840.88

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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.