Home / 7,786.86-11,669.34-3,395.16

Finding the Fourth Proportional to 7,786.86, 11,669.34 and 3,395.16

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Solution

The fourth proportional to 7,786.86, 11,669.34 and 3,395.16 is: 5,087.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.86 : 11,669.34 = 3,395.16 : x
  2. Step 2: Convert to fraction form
    7,786.86/11,669.34 = 3,395.16/x
  3. Step 3: Cross multiply
    7,786.86x = 11,669.34 × 3,395.16
  4. Step 4: Simplify right side
    7,786.86x = 39,619,276.39
  5. Step 5: Solve for x
    x = 39,619,276.39/7,786.86
  6. Step 6: Final answer
    x = 5,087.97

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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.