Home / 11,909.84-17,849.97-4,109.54

Finding the Fourth Proportional to 11,909.84, 17,849.97 and 4,109.54

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Solution

The fourth proportional to 11,909.84, 17,849.97 and 4,109.54 is: 6,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.84 : 17,849.97 = 4,109.54 : x
  2. Step 2: Convert to fraction form
    11,909.84/17,849.97 = 4,109.54/x
  3. Step 3: Cross multiply
    11,909.84x = 17,849.97 × 4,109.54
  4. Step 4: Simplify right side
    11,909.84x = 73,355,076.46
  5. Step 5: Solve for x
    x = 73,355,076.46/11,909.84
  6. Step 6: Final answer
    x = 6,159.20

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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.