Home / 11,990.73-16,512.75-11,954.28

Finding the Fourth Proportional to 11,990.73, 16,512.75 and 11,954.28

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Solution

The fourth proportional to 11,990.73, 16,512.75 and 11,954.28 is: 16,462.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.73 : 16,512.75 = 11,954.28 : x
  2. Step 2: Convert to fraction form
    11,990.73/16,512.75 = 11,954.28/x
  3. Step 3: Cross multiply
    11,990.73x = 16,512.75 × 11,954.28
  4. Step 4: Simplify right side
    11,990.73x = 197,398,037.07
  5. Step 5: Solve for x
    x = 197,398,037.07/11,990.73
  6. Step 6: Final answer
    x = 16,462.55

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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.