Home / 11,989.26-17,980.25-4,196.25

Finding the Fourth Proportional to 11,989.26, 17,980.25 and 4,196.25

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Solution

The fourth proportional to 11,989.26, 17,980.25 and 4,196.25 is: 6,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.26 : 17,980.25 = 4,196.25 : x
  2. Step 2: Convert to fraction form
    11,989.26/17,980.25 = 4,196.25/x
  3. Step 3: Cross multiply
    11,989.26x = 17,980.25 × 4,196.25
  4. Step 4: Simplify right side
    11,989.26x = 75,449,603.08
  5. Step 5: Solve for x
    x = 75,449,603.08/11,989.26
  6. Step 6: Final answer
    x = 6,293.10

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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.