Finding the Fourth Proportional to 8.68, 11.99 and 6.26
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Solution
The fourth proportional to 8.68, 11.99 and 6.26 is: 8.65
Step by Step Solution
- Step 1: Write the proportion equation
8.68 : 11.99 = 6.26 : x - Step 2: Convert to fraction form
8.68/11.99 = 6.26/x - Step 3: Cross multiply
8.68x = 11.99 × 6.26 - Step 4: Simplify right side
8.68x = 75.03 - Step 5: Solve for x
x = 75.03/8.68 - Step 6: Final answer
x = 8.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.