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Finding the Fourth Proportional to 11,891.67, 17,836.08 and 3,127.26

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Solution

The fourth proportional to 11,891.67, 17,836.08 and 3,127.26 is: 4,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.67 : 17,836.08 = 3,127.26 : x
  2. Step 2: Convert to fraction form
    11,891.67/17,836.08 = 3,127.26/x
  3. Step 3: Cross multiply
    11,891.67x = 17,836.08 × 3,127.26
  4. Step 4: Simplify right side
    11,891.67x = 55,778,114.70
  5. Step 5: Solve for x
    x = 55,778,114.70/11,891.67
  6. Step 6: Final answer
    x = 4,690.52

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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.