Home / 8,679.06-13,018.62-2,105.22

Finding the Fourth Proportional to 8,679.06, 13,018.62 and 2,105.22

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Solution

The fourth proportional to 8,679.06, 13,018.62 and 2,105.22 is: 3,157.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.06 : 13,018.62 = 2,105.22 : x
  2. Step 2: Convert to fraction form
    8,679.06/13,018.62 = 2,105.22/x
  3. Step 3: Cross multiply
    8,679.06x = 13,018.62 × 2,105.22
  4. Step 4: Simplify right side
    8,679.06x = 27,407,059.20
  5. Step 5: Solve for x
    x = 27,407,059.20/8,679.06
  6. Step 6: Final answer
    x = 3,157.84

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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.