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Finding the Fourth Proportional to 11,791.81, 16,275 and 6,759.40

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Solution

The fourth proportional to 11,791.81, 16,275 and 6,759.40 is: 9,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.81 : 16,275 = 6,759.40 : x
  2. Step 2: Convert to fraction form
    11,791.81/16,275 = 6,759.40/x
  3. Step 3: Cross multiply
    11,791.81x = 16,275 × 6,759.40
  4. Step 4: Simplify right side
    11,791.81x = 110,009,235
  5. Step 5: Solve for x
    x = 110,009,235/11,791.81
  6. Step 6: Final answer
    x = 9,329.29

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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.