Home / 18,644.05-25,728.27-10,145.97

Finding the Fourth Proportional to 18,644.05, 25,728.27 and 10,145.97

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Solution

The fourth proportional to 18,644.05, 25,728.27 and 10,145.97 is: 14,001.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.05 : 25,728.27 = 10,145.97 : x
  2. Step 2: Convert to fraction form
    18,644.05/25,728.27 = 10,145.97/x
  3. Step 3: Cross multiply
    18,644.05x = 25,728.27 × 10,145.97
  4. Step 4: Simplify right side
    18,644.05x = 261,038,255.57
  5. Step 5: Solve for x
    x = 261,038,255.57/18,644.05
  6. Step 6: Final answer
    x = 14,001.16

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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.