Home / 14,138.88-21,066.24-13,344

Finding the Fourth Proportional to 14,138.88, 21,066.24 and 13,344

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Solution

The fourth proportional to 14,138.88, 21,066.24 and 13,344 is: 19,881.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.88 : 21,066.24 = 13,344 : x
  2. Step 2: Convert to fraction form
    14,138.88/21,066.24 = 13,344/x
  3. Step 3: Cross multiply
    14,138.88x = 21,066.24 × 13,344
  4. Step 4: Simplify right side
    14,138.88x = 281,107,906.56
  5. Step 5: Solve for x
    x = 281,107,906.56/14,138.88
  6. Step 6: Final answer
    x = 19,881.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.