Home / 11,512.35-17,262.86-3,720.15

Finding the Fourth Proportional to 11,512.35, 17,262.86 and 3,720.15

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Solution

The fourth proportional to 11,512.35, 17,262.86 and 3,720.15 is: 5,578.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.35 : 17,262.86 = 3,720.15 : x
  2. Step 2: Convert to fraction form
    11,512.35/17,262.86 = 3,720.15/x
  3. Step 3: Cross multiply
    11,512.35x = 17,262.86 × 3,720.15
  4. Step 4: Simplify right side
    11,512.35x = 64,220,410.03
  5. Step 5: Solve for x
    x = 64,220,410.03/11,512.35
  6. Step 6: Final answer
    x = 5,578.39

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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.