Home / 13,736.62-18,956.55-7,449

Finding the Fourth Proportional to 13,736.62, 18,956.55 and 7,449

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Solution

The fourth proportional to 13,736.62, 18,956.55 and 7,449 is: 10,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.62 : 18,956.55 = 7,449 : x
  2. Step 2: Convert to fraction form
    13,736.62/18,956.55 = 7,449/x
  3. Step 3: Cross multiply
    13,736.62x = 18,956.55 × 7,449
  4. Step 4: Simplify right side
    13,736.62x = 141,207,340.95
  5. Step 5: Solve for x
    x = 141,207,340.95/13,736.62
  6. Step 6: Final answer
    x = 10,279.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.