Home / 12,747.36-17,584.38-7,709.16

Finding the Fourth Proportional to 12,747.36, 17,584.38 and 7,709.16

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Solution

The fourth proportional to 12,747.36, 17,584.38 and 7,709.16 is: 10,634.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.36 : 17,584.38 = 7,709.16 : x
  2. Step 2: Convert to fraction form
    12,747.36/17,584.38 = 7,709.16/x
  3. Step 3: Cross multiply
    12,747.36x = 17,584.38 × 7,709.16
  4. Step 4: Simplify right side
    12,747.36x = 135,560,798.92
  5. Step 5: Solve for x
    x = 135,560,798.92/12,747.36
  6. Step 6: Final answer
    x = 10,634.42

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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.