Home / 11,744.20-16,206.96-6,439

Finding the Fourth Proportional to 11,744.20, 16,206.96 and 6,439

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Solution

The fourth proportional to 11,744.20, 16,206.96 and 6,439 is: 8,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,744.20 : 16,206.96 = 6,439 : x
  2. Step 2: Convert to fraction form
    11,744.20/16,206.96 = 6,439/x
  3. Step 3: Cross multiply
    11,744.20x = 16,206.96 × 6,439
  4. Step 4: Simplify right side
    11,744.20x = 104,356,615.44
  5. Step 5: Solve for x
    x = 104,356,615.44/11,744.20
  6. Step 6: Final answer
    x = 8,885.80

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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.