Home / 13,512.24-20,173.98-11,661.36

Finding the Fourth Proportional to 13,512.24, 20,173.98 and 11,661.36

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Solution

The fourth proportional to 13,512.24, 20,173.98 and 11,661.36 is: 17,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512.24 : 20,173.98 = 11,661.36 : x
  2. Step 2: Convert to fraction form
    13,512.24/20,173.98 = 11,661.36/x
  3. Step 3: Cross multiply
    13,512.24x = 20,173.98 × 11,661.36
  4. Step 4: Simplify right side
    13,512.24x = 235,256,043.41
  5. Step 5: Solve for x
    x = 235,256,043.41/13,512.24
  6. Step 6: Final answer
    x = 17,410.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.