Home / 12,426.82-17,148.79-6,761.37

Finding the Fourth Proportional to 12,426.82, 17,148.79 and 6,761.37

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Solution

The fourth proportional to 12,426.82, 17,148.79 and 6,761.37 is: 9,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.82 : 17,148.79 = 6,761.37 : x
  2. Step 2: Convert to fraction form
    12,426.82/17,148.79 = 6,761.37/x
  3. Step 3: Cross multiply
    12,426.82x = 17,148.79 × 6,761.37
  4. Step 4: Simplify right side
    12,426.82x = 115,949,367.99
  5. Step 5: Solve for x
    x = 115,949,367.99/12,426.82
  6. Step 6: Final answer
    x = 9,330.58

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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.