Home / 12,371.25-17,072.34-6,782.61

Finding the Fourth Proportional to 12,371.25, 17,072.34 and 6,782.61

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Solution

The fourth proportional to 12,371.25, 17,072.34 and 6,782.61 is: 9,360.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.25 : 17,072.34 = 6,782.61 : x
  2. Step 2: Convert to fraction form
    12,371.25/17,072.34 = 6,782.61/x
  3. Step 3: Cross multiply
    12,371.25x = 17,072.34 × 6,782.61
  4. Step 4: Simplify right side
    12,371.25x = 115,795,024.01
  5. Step 5: Solve for x
    x = 115,795,024.01/12,371.25
  6. Step 6: Final answer
    x = 9,360.01

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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.