Home / 12,664.31-17,475.87-6,999

Finding the Fourth Proportional to 12,664.31, 17,475.87 and 6,999

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Solution

The fourth proportional to 12,664.31, 17,475.87 and 6,999 is: 9,658.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.31 : 17,475.87 = 6,999 : x
  2. Step 2: Convert to fraction form
    12,664.31/17,475.87 = 6,999/x
  3. Step 3: Cross multiply
    12,664.31x = 17,475.87 × 6,999
  4. Step 4: Simplify right side
    12,664.31x = 122,313,614.13
  5. Step 5: Solve for x
    x = 122,313,614.13/12,664.31
  6. Step 6: Final answer
    x = 9,658.13

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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.