Home / 13,043.94-17,987.37-11,161.75

Finding the Fourth Proportional to 13,043.94, 17,987.37 and 11,161.75

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Solution

The fourth proportional to 13,043.94, 17,987.37 and 11,161.75 is: 15,391.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,043.94 : 17,987.37 = 11,161.75 : x
  2. Step 2: Convert to fraction form
    13,043.94/17,987.37 = 11,161.75/x
  3. Step 3: Cross multiply
    13,043.94x = 17,987.37 × 11,161.75
  4. Step 4: Simplify right side
    13,043.94x = 200,770,527.10
  5. Step 5: Solve for x
    x = 200,770,527.10/13,043.94
  6. Step 6: Final answer
    x = 15,391.86

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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.