Home / 13,679.94-20,493.12-12,192.26

Finding the Fourth Proportional to 13,679.94, 20,493.12 and 12,192.26

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Solution

The fourth proportional to 13,679.94, 20,493.12 and 12,192.26 is: 18,264.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,679.94 : 20,493.12 = 12,192.26 : x
  2. Step 2: Convert to fraction form
    13,679.94/20,493.12 = 12,192.26/x
  3. Step 3: Cross multiply
    13,679.94x = 20,493.12 × 12,192.26
  4. Step 4: Simplify right side
    13,679.94x = 249,857,447.25
  5. Step 5: Solve for x
    x = 249,857,447.25/13,679.94
  6. Step 6: Final answer
    x = 18,264.51

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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.