Finding the Fourth Proportional to 17.99, 26.97 and 7.84
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Solution
The fourth proportional to 17.99, 26.97 and 7.84 is: 11.75
Step by Step Solution
- Step 1: Write the proportion equation
17.99 : 26.97 = 7.84 : x - Step 2: Convert to fraction form
17.99/26.97 = 7.84/x - Step 3: Cross multiply
17.99x = 26.97 × 7.84 - Step 4: Simplify right side
17.99x = 211.49 - Step 5: Solve for x
x = 211.49/17.99 - Step 6: Final answer
x = 11.75
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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.