Home / 13,736.88-18,956.80-7,449.25

Finding the Fourth Proportional to 13,736.88, 18,956.80 and 7,449.25

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Solution

The fourth proportional to 13,736.88, 18,956.80 and 7,449.25 is: 10,279.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.88 : 18,956.80 = 7,449.25 : x
  2. Step 2: Convert to fraction form
    13,736.88/18,956.80 = 7,449.25/x
  3. Step 3: Cross multiply
    13,736.88x = 18,956.80 × 7,449.25
  4. Step 4: Simplify right side
    13,736.88x = 141,213,942.40
  5. Step 5: Solve for x
    x = 141,213,942.40/13,736.88
  6. Step 6: Final answer
    x = 10,279.91

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1.5x scale

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.