Home / 12,121.44-18,186.48-6,282

Finding the Fourth Proportional to 12,121.44, 18,186.48 and 6,282

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Solution

The fourth proportional to 12,121.44, 18,186.48 and 6,282 is: 9,425.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.44 : 18,186.48 = 6,282 : x
  2. Step 2: Convert to fraction form
    12,121.44/18,186.48 = 6,282/x
  3. Step 3: Cross multiply
    12,121.44x = 18,186.48 × 6,282
  4. Step 4: Simplify right side
    12,121.44x = 114,247,467.36
  5. Step 5: Solve for x
    x = 114,247,467.36/12,121.44
  6. Step 6: Final answer
    x = 9,425.24

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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.