Home / 11,986.36-16,543.37-9,149.33

Finding the Fourth Proportional to 11,986.36, 16,543.37 and 9,149.33

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Solution

The fourth proportional to 11,986.36, 16,543.37 and 9,149.33 is: 12,627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.36 : 16,543.37 = 9,149.33 : x
  2. Step 2: Convert to fraction form
    11,986.36/16,543.37 = 9,149.33/x
  3. Step 3: Cross multiply
    11,986.36x = 16,543.37 × 9,149.33
  4. Step 4: Simplify right side
    11,986.36x = 151,360,751.44
  5. Step 5: Solve for x
    x = 151,360,751.44/11,986.36
  6. Step 6: Final answer
    x = 12,627.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.