Home / 11,202.78-16,806.72-3,412.20

Finding the Fourth Proportional to 11,202.78, 16,806.72 and 3,412.20

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Solution

The fourth proportional to 11,202.78, 16,806.72 and 3,412.20 is: 5,119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,202.78 : 16,806.72 = 3,412.20 : x
  2. Step 2: Convert to fraction form
    11,202.78/16,806.72 = 3,412.20/x
  3. Step 3: Cross multiply
    11,202.78x = 16,806.72 × 3,412.20
  4. Step 4: Simplify right side
    11,202.78x = 57,347,889.98
  5. Step 5: Solve for x
    x = 57,347,889.98/11,202.78
  6. Step 6: Final answer
    x = 5,119.08

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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.