Home / 8,679.09-13,020.44-3,485.37

Finding the Fourth Proportional to 8,679.09, 13,020.44 and 3,485.37

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Solution

The fourth proportional to 8,679.09, 13,020.44 and 3,485.37 is: 5,228.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.09 : 13,020.44 = 3,485.37 : x
  2. Step 2: Convert to fraction form
    8,679.09/13,020.44 = 3,485.37/x
  3. Step 3: Cross multiply
    8,679.09x = 13,020.44 × 3,485.37
  4. Step 4: Simplify right side
    8,679.09x = 45,381,050.96
  5. Step 5: Solve for x
    x = 45,381,050.96/8,679.09
  6. Step 6: Final answer
    x = 5,228.78

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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.