Home / 14,962.73-20,640.97-11,419.79

Finding the Fourth Proportional to 14,962.73, 20,640.97 and 11,419.79

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Solution

The fourth proportional to 14,962.73, 20,640.97 and 11,419.79 is: 15,753.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,962.73 : 20,640.97 = 11,419.79 : x
  2. Step 2: Convert to fraction form
    14,962.73/20,640.97 = 11,419.79/x
  3. Step 3: Cross multiply
    14,962.73x = 20,640.97 × 11,419.79
  4. Step 4: Simplify right side
    14,962.73x = 235,715,542.80
  5. Step 5: Solve for x
    x = 235,715,542.80/14,962.73
  6. Step 6: Final answer
    x = 15,753.51

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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.