Home / 13,612.44-20,419.84-3,751.74

Finding the Fourth Proportional to 13,612.44, 20,419.84 and 3,751.74

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Solution

The fourth proportional to 13,612.44, 20,419.84 and 3,751.74 is: 5,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612.44 : 20,419.84 = 3,751.74 : x
  2. Step 2: Convert to fraction form
    13,612.44/20,419.84 = 3,751.74/x
  3. Step 3: Cross multiply
    13,612.44x = 20,419.84 × 3,751.74
  4. Step 4: Simplify right side
    13,612.44x = 76,609,930.52
  5. Step 5: Solve for x
    x = 76,609,930.52/13,612.44
  6. Step 6: Final answer
    x = 5,627.94

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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.