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Finding the Fourth Proportional to 19.01, 26.06 and 18.69

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Solution

The fourth proportional to 19.01, 26.06 and 18.69 is: 25.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.01 : 26.06 = 18.69 : x
  2. Step 2: Convert to fraction form
    19.01/26.06 = 18.69/x
  3. Step 3: Cross multiply
    19.01x = 26.06 × 18.69
  4. Step 4: Simplify right side
    19.01x = 486.97
  5. Step 5: Solve for x
    x = 486.97/19.01
  6. Step 6: Final answer
    x = 25.62

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.