Finding the Fourth Proportional to 9.22, 13.81 and 6
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Solution
The fourth proportional to 9.22, 13.81 and 6 is: 8.99
Step by Step Solution
- Step 1: Write the proportion equation
9.22 : 13.81 = 6 : x - Step 2: Convert to fraction form
9.22/13.81 = 6/x - Step 3: Cross multiply
9.22x = 13.81 × 6 - Step 4: Simplify right side
9.22x = 82.86 - Step 5: Solve for x
x = 82.86/9.22 - Step 6: Final answer
x = 8.99
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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.