Home / 12,118.26-18,168.66-4,716.48

Finding the Fourth Proportional to 12,118.26, 18,168.66 and 4,716.48

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Solution

The fourth proportional to 12,118.26, 18,168.66 and 4,716.48 is: 7,071.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.26 : 18,168.66 = 4,716.48 : x
  2. Step 2: Convert to fraction form
    12,118.26/18,168.66 = 4,716.48/x
  3. Step 3: Cross multiply
    12,118.26x = 18,168.66 × 4,716.48
  4. Step 4: Simplify right side
    12,118.26x = 85,692,121.52
  5. Step 5: Solve for x
    x = 85,692,121.52/12,118.26
  6. Step 6: Final answer
    x = 7,071.32

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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.