Home / 11,990.26-17,981.74-4,197.25

Finding the Fourth Proportional to 11,990.26, 17,981.74 and 4,197.25

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Solution

The fourth proportional to 11,990.26, 17,981.74 and 4,197.25 is: 6,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.26 : 17,981.74 = 4,197.25 : x
  2. Step 2: Convert to fraction form
    11,990.26/17,981.74 = 4,197.25/x
  3. Step 3: Cross multiply
    11,990.26x = 17,981.74 × 4,197.25
  4. Step 4: Simplify right side
    11,990.26x = 75,473,858.22
  5. Step 5: Solve for x
    x = 75,473,858.22/11,990.26
  6. Step 6: Final answer
    x = 6,294.60

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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.