Home / 18,660.28-25,753.01-13,936.36

Finding the Fourth Proportional to 18,660.28, 25,753.01 and 13,936.36

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Solution

The fourth proportional to 18,660.28, 25,753.01 and 13,936.36 is: 19,233.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.28 : 25,753.01 = 13,936.36 : x
  2. Step 2: Convert to fraction form
    18,660.28/25,753.01 = 13,936.36/x
  3. Step 3: Cross multiply
    18,660.28x = 25,753.01 × 13,936.36
  4. Step 4: Simplify right side
    18,660.28x = 358,903,218.44
  5. Step 5: Solve for x
    x = 358,903,218.44/18,660.28
  6. Step 6: Final answer
    x = 19,233.54

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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.