Home / 8,739.58-13,097.68-3,187.70

Finding the Fourth Proportional to 8,739.58, 13,097.68 and 3,187.70

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Solution

The fourth proportional to 8,739.58, 13,097.68 and 3,187.70 is: 4,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.58 : 13,097.68 = 3,187.70 : x
  2. Step 2: Convert to fraction form
    8,739.58/13,097.68 = 3,187.70/x
  3. Step 3: Cross multiply
    8,739.58x = 13,097.68 × 3,187.70
  4. Step 4: Simplify right side
    8,739.58x = 41,751,474.54
  5. Step 5: Solve for x
    x = 41,751,474.54/8,739.58
  6. Step 6: Final answer
    x = 4,777.29

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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.