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Finding the Fourth Proportional to 11,240, 16,860.06 and 3,448.88

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Solution

The fourth proportional to 11,240, 16,860.06 and 3,448.88 is: 5,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240 : 16,860.06 = 3,448.88 : x
  2. Step 2: Convert to fraction form
    11,240/16,860.06 = 3,448.88/x
  3. Step 3: Cross multiply
    11,240x = 16,860.06 × 3,448.88
  4. Step 4: Simplify right side
    11,240x = 58,148,323.73
  5. Step 5: Solve for x
    x = 58,148,323.73/11,240
  6. Step 6: Final answer
    x = 5,173.34

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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.