Home / 6,786.36-10,178.73-1,856.43

Finding the Fourth Proportional to 6,786.36, 10,178.73 and 1,856.43

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Solution

The fourth proportional to 6,786.36, 10,178.73 and 1,856.43 is: 2,784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,786.36 : 10,178.73 = 1,856.43 : x
  2. Step 2: Convert to fraction form
    6,786.36/10,178.73 = 1,856.43/x
  3. Step 3: Cross multiply
    6,786.36x = 10,178.73 × 1,856.43
  4. Step 4: Simplify right side
    6,786.36x = 18,896,099.73
  5. Step 5: Solve for x
    x = 18,896,099.73/6,786.36
  6. Step 6: Final answer
    x = 2,784.42

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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.