Home / 12,422.22-18,615.21-5,760.75

Finding the Fourth Proportional to 12,422.22, 18,615.21 and 5,760.75

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Solution

The fourth proportional to 12,422.22, 18,615.21 and 5,760.75 is: 8,632.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.22 : 18,615.21 = 5,760.75 : x
  2. Step 2: Convert to fraction form
    12,422.22/18,615.21 = 5,760.75/x
  3. Step 3: Cross multiply
    12,422.22x = 18,615.21 × 5,760.75
  4. Step 4: Simplify right side
    12,422.22x = 107,237,571.01
  5. Step 5: Solve for x
    x = 107,237,571.01/12,422.22
  6. Step 6: Final answer
    x = 8,632.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.