Home / 18,626.28-25,704.26-10,242.78

Finding the Fourth Proportional to 18,626.28, 25,704.26 and 10,242.78

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Solution

The fourth proportional to 18,626.28, 25,704.26 and 10,242.78 is: 14,135.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,626.28 : 25,704.26 = 10,242.78 : x
  2. Step 2: Convert to fraction form
    18,626.28/25,704.26 = 10,242.78/x
  3. Step 3: Cross multiply
    18,626.28x = 25,704.26 × 10,242.78
  4. Step 4: Simplify right side
    18,626.28x = 263,283,029.03
  5. Step 5: Solve for x
    x = 263,283,029.03/18,626.28
  6. Step 6: Final answer
    x = 14,135.03

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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.