Home / 12,829.88-19,245.11-10,199.20

Finding the Fourth Proportional to 12,829.88, 19,245.11 and 10,199.20

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Solution

The fourth proportional to 12,829.88, 19,245.11 and 10,199.20 is: 15,299.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.88 : 19,245.11 = 10,199.20 : x
  2. Step 2: Convert to fraction form
    12,829.88/19,245.11 = 10,199.20/x
  3. Step 3: Cross multiply
    12,829.88x = 19,245.11 × 10,199.20
  4. Step 4: Simplify right side
    12,829.88x = 196,284,662.89
  5. Step 5: Solve for x
    x = 196,284,662.89/12,829.88
  6. Step 6: Final answer
    x = 15,299.03

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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.