Home / 11,139.20-16,709.66-3,743.60

Finding the Fourth Proportional to 11,139.20, 16,709.66 and 3,743.60

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Solution

The fourth proportional to 11,139.20, 16,709.66 and 3,743.60 is: 5,615.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.20 : 16,709.66 = 3,743.60 : x
  2. Step 2: Convert to fraction form
    11,139.20/16,709.66 = 3,743.60/x
  3. Step 3: Cross multiply
    11,139.20x = 16,709.66 × 3,743.60
  4. Step 4: Simplify right side
    11,139.20x = 62,554,208.99
  5. Step 5: Solve for x
    x = 62,554,208.99/11,139.20
  6. Step 6: Final answer
    x = 5,615.68

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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.