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Finding the Fourth Proportional to 11,891.01, 17,821.01 and 6,625.80

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Solution

The fourth proportional to 11,891.01, 17,821.01 and 6,625.80 is: 9,930.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.01 : 17,821.01 = 6,625.80 : x
  2. Step 2: Convert to fraction form
    11,891.01/17,821.01 = 6,625.80/x
  3. Step 3: Cross multiply
    11,891.01x = 17,821.01 × 6,625.80
  4. Step 4: Simplify right side
    11,891.01x = 118,078,448.06
  5. Step 5: Solve for x
    x = 118,078,448.06/11,891.01
  6. Step 6: Final answer
    x = 9,930.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.