Home / 12,334.40-18,523.20-11,945.60

Finding the Fourth Proportional to 12,334.40, 18,523.20 and 11,945.60

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Solution

The fourth proportional to 12,334.40, 18,523.20 and 11,945.60 is: 17,939.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,334.40 : 18,523.20 = 11,945.60 : x
  2. Step 2: Convert to fraction form
    12,334.40/18,523.20 = 11,945.60/x
  3. Step 3: Cross multiply
    12,334.40x = 18,523.20 × 11,945.60
  4. Step 4: Simplify right side
    12,334.40x = 221,270,737.92
  5. Step 5: Solve for x
    x = 221,270,737.92/12,334.40
  6. Step 6: Final answer
    x = 17,939.32

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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.