Home / 12,742.26-17,584.47-7,707.03

Finding the Fourth Proportional to 12,742.26, 17,584.47 and 7,707.03

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Solution

The fourth proportional to 12,742.26, 17,584.47 and 7,707.03 is: 10,635.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.26 : 17,584.47 = 7,707.03 : x
  2. Step 2: Convert to fraction form
    12,742.26/17,584.47 = 7,707.03/x
  3. Step 3: Cross multiply
    12,742.26x = 17,584.47 × 7,707.03
  4. Step 4: Simplify right side
    12,742.26x = 135,524,037.82
  5. Step 5: Solve for x
    x = 135,524,037.82/12,742.26
  6. Step 6: Final answer
    x = 10,635.79

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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.