Home / 18,522.21-25,561.26-10,138.71

Finding the Fourth Proportional to 18,522.21, 25,561.26 and 10,138.71

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Solution

The fourth proportional to 18,522.21, 25,561.26 and 10,138.71 is: 13,991.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,522.21 : 25,561.26 = 10,138.71 : x
  2. Step 2: Convert to fraction form
    18,522.21/25,561.26 = 10,138.71/x
  3. Step 3: Cross multiply
    18,522.21x = 25,561.26 × 10,138.71
  4. Step 4: Simplify right side
    18,522.21x = 259,158,202.37
  5. Step 5: Solve for x
    x = 259,158,202.37/18,522.21
  6. Step 6: Final answer
    x = 13,991.75

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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.