Finding the Fourth Proportional to 17.28, 25.91 and 8.26
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Solution
The fourth proportional to 17.28, 25.91 and 8.26 is: 12.39
Step by Step Solution
- Step 1: Write the proportion equation
17.28 : 25.91 = 8.26 : x - Step 2: Convert to fraction form
17.28/25.91 = 8.26/x - Step 3: Cross multiply
17.28x = 25.91 × 8.26 - Step 4: Simplify right side
17.28x = 214.02 - Step 5: Solve for x
x = 214.02/17.28 - Step 6: Final answer
x = 12.39
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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.