Home / 13,723.75-20,546.41-12,851.87

Finding the Fourth Proportional to 13,723.75, 20,546.41 and 12,851.87

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Solution

The fourth proportional to 13,723.75, 20,546.41 and 12,851.87 is: 19,241.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.75 : 20,546.41 = 12,851.87 : x
  2. Step 2: Convert to fraction form
    13,723.75/20,546.41 = 12,851.87/x
  3. Step 3: Cross multiply
    13,723.75x = 20,546.41 × 12,851.87
  4. Step 4: Simplify right side
    13,723.75x = 264,059,679.52
  5. Step 5: Solve for x
    x = 264,059,679.52/13,723.75
  6. Step 6: Final answer
    x = 19,241.07

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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.