Home / 8,721.22-13,057.86-6,091.36

Finding the Fourth Proportional to 8,721.22, 13,057.86 and 6,091.36

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Solution

The fourth proportional to 8,721.22, 13,057.86 and 6,091.36 is: 9,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.22 : 13,057.86 = 6,091.36 : x
  2. Step 2: Convert to fraction form
    8,721.22/13,057.86 = 6,091.36/x
  3. Step 3: Cross multiply
    8,721.22x = 13,057.86 × 6,091.36
  4. Step 4: Simplify right side
    8,721.22x = 79,540,126.09
  5. Step 5: Solve for x
    x = 79,540,126.09/8,721.22
  6. Step 6: Final answer
    x = 9,120.30

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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.