Home / 13,736.93-18,956.21-7,768.26

Finding the Fourth Proportional to 13,736.93, 18,956.21 and 7,768.26

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Solution

The fourth proportional to 13,736.93, 18,956.21 and 7,768.26 is: 10,719.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.93 : 18,956.21 = 7,768.26 : x
  2. Step 2: Convert to fraction form
    13,736.93/18,956.21 = 7,768.26/x
  3. Step 3: Cross multiply
    13,736.93x = 18,956.21 × 7,768.26
  4. Step 4: Simplify right side
    13,736.93x = 147,256,729.05
  5. Step 5: Solve for x
    x = 147,256,729.05/13,736.93
  6. Step 6: Final answer
    x = 10,719.77

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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.