Home / 11,121.54-16,680.84-4,195.14

Finding the Fourth Proportional to 11,121.54, 16,680.84 and 4,195.14

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Solution

The fourth proportional to 11,121.54, 16,680.84 and 4,195.14 is: 6,292.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.54 : 16,680.84 = 4,195.14 : x
  2. Step 2: Convert to fraction form
    11,121.54/16,680.84 = 4,195.14/x
  3. Step 3: Cross multiply
    11,121.54x = 16,680.84 × 4,195.14
  4. Step 4: Simplify right side
    11,121.54x = 69,978,459.12
  5. Step 5: Solve for x
    x = 69,978,459.12/11,121.54
  6. Step 6: Final answer
    x = 6,292.16

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1.5x scale

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.