Home / 18,344.25-25,315.07-9,960.75

Finding the Fourth Proportional to 18,344.25, 25,315.07 and 9,960.75

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Solution

The fourth proportional to 18,344.25, 25,315.07 and 9,960.75 is: 13,745.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.25 : 25,315.07 = 9,960.75 : x
  2. Step 2: Convert to fraction form
    18,344.25/25,315.07 = 9,960.75/x
  3. Step 3: Cross multiply
    18,344.25x = 25,315.07 × 9,960.75
  4. Step 4: Simplify right side
    18,344.25x = 252,157,033.70
  5. Step 5: Solve for x
    x = 252,157,033.70/18,344.25
  6. Step 6: Final answer
    x = 13,745.84

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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.