Home / 11,479.25-17,221.77-3,271.25

Finding the Fourth Proportional to 11,479.25, 17,221.77 and 3,271.25

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Solution

The fourth proportional to 11,479.25, 17,221.77 and 3,271.25 is: 4,907.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.25 : 17,221.77 = 3,271.25 : x
  2. Step 2: Convert to fraction form
    11,479.25/17,221.77 = 3,271.25/x
  3. Step 3: Cross multiply
    11,479.25x = 17,221.77 × 3,271.25
  4. Step 4: Simplify right side
    11,479.25x = 56,336,698.76
  5. Step 5: Solve for x
    x = 56,336,698.76/11,479.25
  6. Step 6: Final answer
    x = 4,907.70

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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.