Home / 13,615.26-20,418.03-4,728.30

Finding the Fourth Proportional to 13,615.26, 20,418.03 and 4,728.30

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Solution

The fourth proportional to 13,615.26, 20,418.03 and 4,728.30 is: 7,090.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.26 : 20,418.03 = 4,728.30 : x
  2. Step 2: Convert to fraction form
    13,615.26/20,418.03 = 4,728.30/x
  3. Step 3: Cross multiply
    13,615.26x = 20,418.03 × 4,728.30
  4. Step 4: Simplify right side
    13,615.26x = 96,542,571.25
  5. Step 5: Solve for x
    x = 96,542,571.25/13,615.26
  6. Step 6: Final answer
    x = 7,090.76

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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.