Home / 8,236.79-11,363.93-6,721.68

Finding the Fourth Proportional to 8,236.79, 11,363.93 and 6,721.68

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Solution

The fourth proportional to 8,236.79, 11,363.93 and 6,721.68 is: 9,273.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.79 : 11,363.93 = 6,721.68 : x
  2. Step 2: Convert to fraction form
    8,236.79/11,363.93 = 6,721.68/x
  3. Step 3: Cross multiply
    8,236.79x = 11,363.93 × 6,721.68
  4. Step 4: Simplify right side
    8,236.79x = 76,384,735.22
  5. Step 5: Solve for x
    x = 76,384,735.22/8,236.79
  6. Step 6: Final answer
    x = 9,273.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.