Home / 6,824.40-10,218.38-3,898.68

Finding the Fourth Proportional to 6,824.40, 10,218.38 and 3,898.68

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Solution

The fourth proportional to 6,824.40, 10,218.38 and 3,898.68 is: 5,837.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,824.40 : 10,218.38 = 3,898.68 : x
  2. Step 2: Convert to fraction form
    6,824.40/10,218.38 = 3,898.68/x
  3. Step 3: Cross multiply
    6,824.40x = 10,218.38 × 3,898.68
  4. Step 4: Simplify right side
    6,824.40x = 39,838,174.25
  5. Step 5: Solve for x
    x = 39,838,174.25/6,824.40
  6. Step 6: Final answer
    x = 5,837.61

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1.5x scale

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.