Home / 12,977.26-17,908.98-7,941.39

Finding the Fourth Proportional to 12,977.26, 17,908.98 and 7,941.39

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Solution

The fourth proportional to 12,977.26, 17,908.98 and 7,941.39 is: 10,959.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.26 : 17,908.98 = 7,941.39 : x
  2. Step 2: Convert to fraction form
    12,977.26/17,908.98 = 7,941.39/x
  3. Step 3: Cross multiply
    12,977.26x = 17,908.98 × 7,941.39
  4. Step 4: Simplify right side
    12,977.26x = 142,222,194.68
  5. Step 5: Solve for x
    x = 142,222,194.68/12,977.26
  6. Step 6: Final answer
    x = 10,959.34

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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.