Home / 12,426.90-17,148.99-6,761.82

Finding the Fourth Proportional to 12,426.90, 17,148.99 and 6,761.82

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Solution

The fourth proportional to 12,426.90, 17,148.99 and 6,761.82 is: 9,331.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426.90 : 17,148.99 = 6,761.82 : x
  2. Step 2: Convert to fraction form
    12,426.90/17,148.99 = 6,761.82/x
  3. Step 3: Cross multiply
    12,426.90x = 17,148.99 × 6,761.82
  4. Step 4: Simplify right side
    12,426.90x = 115,958,383.56
  5. Step 5: Solve for x
    x = 115,958,383.56/12,426.90
  6. Step 6: Final answer
    x = 9,331.24

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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.