Home / 18,272.44-25,220.62-12,223.36

Finding the Fourth Proportional to 18,272.44, 25,220.62 and 12,223.36

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Solution

The fourth proportional to 18,272.44, 25,220.62 and 12,223.36 is: 16,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.44 : 25,220.62 = 12,223.36 : x
  2. Step 2: Convert to fraction form
    18,272.44/25,220.62 = 12,223.36/x
  3. Step 3: Cross multiply
    18,272.44x = 25,220.62 × 12,223.36
  4. Step 4: Simplify right side
    18,272.44x = 308,280,553.87
  5. Step 5: Solve for x
    x = 308,280,553.87/18,272.44
  6. Step 6: Final answer
    x = 16,871.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.