Home / 12,791.89-17,651.60-7,126.06

Finding the Fourth Proportional to 12,791.89, 17,651.60 and 7,126.06

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Solution

The fourth proportional to 12,791.89, 17,651.60 and 7,126.06 is: 9,833.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.89 : 17,651.60 = 7,126.06 : x
  2. Step 2: Convert to fraction form
    12,791.89/17,651.60 = 7,126.06/x
  3. Step 3: Cross multiply
    12,791.89x = 17,651.60 × 7,126.06
  4. Step 4: Simplify right side
    12,791.89x = 125,786,307.66
  5. Step 5: Solve for x
    x = 125,786,307.66/12,791.89
  6. Step 6: Final answer
    x = 9,833.29

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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.