Home / 13,727.97-18,944.40-7,759.44

Finding the Fourth Proportional to 13,727.97, 18,944.40 and 7,759.44

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Solution

The fourth proportional to 13,727.97, 18,944.40 and 7,759.44 is: 10,707.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,727.97 : 18,944.40 = 7,759.44 : x
  2. Step 2: Convert to fraction form
    13,727.97/18,944.40 = 7,759.44/x
  3. Step 3: Cross multiply
    13,727.97x = 18,944.40 × 7,759.44
  4. Step 4: Simplify right side
    13,727.97x = 146,997,935.14
  5. Step 5: Solve for x
    x = 146,997,935.14/13,727.97
  6. Step 6: Final answer
    x = 10,707.91

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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.