Home / 11,231.78-16,828.50-6,298.34

Finding the Fourth Proportional to 11,231.78, 16,828.50 and 6,298.34

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Solution

The fourth proportional to 11,231.78, 16,828.50 and 6,298.34 is: 9,436.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.78 : 16,828.50 = 6,298.34 : x
  2. Step 2: Convert to fraction form
    11,231.78/16,828.50 = 6,298.34/x
  3. Step 3: Cross multiply
    11,231.78x = 16,828.50 × 6,298.34
  4. Step 4: Simplify right side
    11,231.78x = 105,991,614.69
  5. Step 5: Solve for x
    x = 105,991,614.69/11,231.78
  6. Step 6: Final answer
    x = 9,436.76

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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.