Home / 18,223.21-27,334.82-13,138.44

Finding the Fourth Proportional to 18,223.21, 27,334.82 and 13,138.44

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Solution

The fourth proportional to 18,223.21, 27,334.82 and 13,138.44 is: 19,707.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,223.21 : 27,334.82 = 13,138.44 : x
  2. Step 2: Convert to fraction form
    18,223.21/27,334.82 = 13,138.44/x
  3. Step 3: Cross multiply
    18,223.21x = 27,334.82 × 13,138.44
  4. Step 4: Simplify right side
    18,223.21x = 359,136,892.48
  5. Step 5: Solve for x
    x = 359,136,892.48/18,223.21
  6. Step 6: Final answer
    x = 19,707.66

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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.