Home / 8,720.97-13,081.30-2,481.03

Finding the Fourth Proportional to 8,720.97, 13,081.30 and 2,481.03

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Solution

The fourth proportional to 8,720.97, 13,081.30 and 2,481.03 is: 3,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.97 : 13,081.30 = 2,481.03 : x
  2. Step 2: Convert to fraction form
    8,720.97/13,081.30 = 2,481.03/x
  3. Step 3: Cross multiply
    8,720.97x = 13,081.30 × 2,481.03
  4. Step 4: Simplify right side
    8,720.97x = 32,455,091.54
  5. Step 5: Solve for x
    x = 32,455,091.54/8,720.97
  6. Step 6: Final answer
    x = 3,721.50

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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.