Home / 13,199.82-18,204.12-8,163.24

Finding the Fourth Proportional to 13,199.82, 18,204.12 and 8,163.24

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Solution

The fourth proportional to 13,199.82, 18,204.12 and 8,163.24 is: 11,258.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.82 : 18,204.12 = 8,163.24 : x
  2. Step 2: Convert to fraction form
    13,199.82/18,204.12 = 8,163.24/x
  3. Step 3: Cross multiply
    13,199.82x = 18,204.12 × 8,163.24
  4. Step 4: Simplify right side
    13,199.82x = 148,604,600.55
  5. Step 5: Solve for x
    x = 148,604,600.55/13,199.82
  6. Step 6: Final answer
    x = 11,258.08

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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.