Home / 12,791.09-17,644.63-10,648.43

Finding the Fourth Proportional to 12,791.09, 17,644.63 and 10,648.43

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Solution

The fourth proportional to 12,791.09, 17,644.63 and 10,648.43 is: 14,688.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.09 : 17,644.63 = 10,648.43 : x
  2. Step 2: Convert to fraction form
    12,791.09/17,644.63 = 10,648.43/x
  3. Step 3: Cross multiply
    12,791.09x = 17,644.63 × 10,648.43
  4. Step 4: Simplify right side
    12,791.09x = 187,887,554.19
  5. Step 5: Solve for x
    x = 187,887,554.19/12,791.09
  6. Step 6: Final answer
    x = 14,688.94

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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.