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Finding the Fourth Proportional to 17,968.28, 26,959.74 and 8,100.68

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Solution

The fourth proportional to 17,968.28, 26,959.74 and 8,100.68 is: 12,154.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,968.28 : 26,959.74 = 8,100.68 : x
  2. Step 2: Convert to fraction form
    17,968.28/26,959.74 = 8,100.68/x
  3. Step 3: Cross multiply
    17,968.28x = 26,959.74 × 8,100.68
  4. Step 4: Simplify right side
    17,968.28x = 218,392,226.62
  5. Step 5: Solve for x
    x = 218,392,226.62/17,968.28
  6. Step 6: Final answer
    x = 12,154.32

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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.