Home / 13,617.76-20,383.36-13,101.12

Finding the Fourth Proportional to 13,617.76, 20,383.36 and 13,101.12

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Solution

The fourth proportional to 13,617.76, 20,383.36 and 13,101.12 is: 19,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.76 : 20,383.36 = 13,101.12 : x
  2. Step 2: Convert to fraction form
    13,617.76/20,383.36 = 13,101.12/x
  3. Step 3: Cross multiply
    13,617.76x = 20,383.36 × 13,101.12
  4. Step 4: Simplify right side
    13,617.76x = 267,044,845.36
  5. Step 5: Solve for x
    x = 267,044,845.36/13,617.76
  6. Step 6: Final answer
    x = 19,610.04

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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.