Finding the Fourth Proportional to 10.51, 15.75 and 6
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Solution
The fourth proportional to 10.51, 15.75 and 6 is: 8.99
Step by Step Solution
- Step 1: Write the proportion equation
10.51 : 15.75 = 6 : x - Step 2: Convert to fraction form
10.51/15.75 = 6/x - Step 3: Cross multiply
10.51x = 15.75 × 6 - Step 4: Simplify right side
10.51x = 94.50 - Step 5: Solve for x
x = 94.50/10.51 - 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.