Home / 11,388.44-15,716.78-6,353.42

Finding the Fourth Proportional to 11,388.44, 15,716.78 and 6,353.42

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Solution

The fourth proportional to 11,388.44, 15,716.78 and 6,353.42 is: 8,768.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.44 : 15,716.78 = 6,353.42 : x
  2. Step 2: Convert to fraction form
    11,388.44/15,716.78 = 6,353.42/x
  3. Step 3: Cross multiply
    11,388.44x = 15,716.78 × 6,353.42
  4. Step 4: Simplify right side
    11,388.44x = 99,855,311.91
  5. Step 5: Solve for x
    x = 99,855,311.91/11,388.44
  6. Step 6: Final answer
    x = 8,768.13

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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.