Home / 18,120.68-25,007.26-10,571.90

Finding the Fourth Proportional to 18,120.68, 25,007.26 and 10,571.90

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Solution

The fourth proportional to 18,120.68, 25,007.26 and 10,571.90 is: 14,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.68 : 25,007.26 = 10,571.90 : x
  2. Step 2: Convert to fraction form
    18,120.68/25,007.26 = 10,571.90/x
  3. Step 3: Cross multiply
    18,120.68x = 25,007.26 × 10,571.90
  4. Step 4: Simplify right side
    18,120.68x = 264,374,251.99
  5. Step 5: Solve for x
    x = 264,374,251.99/18,120.68
  6. Step 6: Final answer
    x = 14,589.64

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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.