Finding the Fourth Proportional to 7.44, 10.27 and 6.99
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Solution
The fourth proportional to 7.44, 10.27 and 6.99 is: 9.65
Step by Step Solution
- Step 1: Write the proportion equation
7.44 : 10.27 = 6.99 : x - Step 2: Convert to fraction form
7.44/10.27 = 6.99/x - Step 3: Cross multiply
7.44x = 10.27 × 6.99 - Step 4: Simplify right side
7.44x = 71.79 - Step 5: Solve for x
x = 71.79/7.44 - Step 6: Final answer
x = 9.65
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Double scale
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1.5x scale
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.