Home / 13,612.24-20,418.30-3,751.60

Finding the Fourth Proportional to 13,612.24, 20,418.30 and 3,751.60

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Solution

The fourth proportional to 13,612.24, 20,418.30 and 3,751.60 is: 5,627.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.24 : 20,418.30 = 3,751.60 : x
  2. Step 2: Convert to fraction form
    13,612.24/20,418.30 = 3,751.60/x
  3. Step 3: Cross multiply
    13,612.24x = 20,418.30 × 3,751.60
  4. Step 4: Simplify right side
    13,612.24x = 76,601,294.28
  5. Step 5: Solve for x
    x = 76,601,294.28/13,612.24
  6. Step 6: Final answer
    x = 5,627.38

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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.