Home / 15,921.20-23,906.10-12,227.60

Finding the Fourth Proportional to 15,921.20, 23,906.10 and 12,227.60

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Solution

The fourth proportional to 15,921.20, 23,906.10 and 12,227.60 is: 18,360.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.20 : 23,906.10 = 12,227.60 : x
  2. Step 2: Convert to fraction form
    15,921.20/23,906.10 = 12,227.60/x
  3. Step 3: Cross multiply
    15,921.20x = 23,906.10 × 12,227.60
  4. Step 4: Simplify right side
    15,921.20x = 292,314,228.36
  5. Step 5: Solve for x
    x = 292,314,228.36/15,921.20
  6. Step 6: Final answer
    x = 18,360.06

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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.