Home / 18,644.27-25,728.75-10,146.09

Finding the Fourth Proportional to 18,644.27, 25,728.75 and 10,146.09

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Solution

The fourth proportional to 18,644.27, 25,728.75 and 10,146.09 is: 14,001.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.27 : 25,728.75 = 10,146.09 : x
  2. Step 2: Convert to fraction form
    18,644.27/25,728.75 = 10,146.09/x
  3. Step 3: Cross multiply
    18,644.27x = 25,728.75 × 10,146.09
  4. Step 4: Simplify right side
    18,644.27x = 261,046,213.09
  5. Step 5: Solve for x
    x = 261,046,213.09/18,644.27
  6. Step 6: Final answer
    x = 14,001.42

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Half scale
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Double scale
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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.