Finding the Fourth Proportional to 7,634.14, 11,510.08 and 7,586.75
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Solution
The fourth proportional to 7,634.14, 11,510.08 and 7,586.75 is: 11,438.63
Step by Step Solution
- Step 1: Write the proportion equation
7,634.14 : 11,510.08 = 7,586.75 : x - Step 2: Convert to fraction form
7,634.14/11,510.08 = 7,586.75/x - Step 3: Cross multiply
7,634.14x = 11,510.08 × 7,586.75 - Step 4: Simplify right side
7,634.14x = 87,324,109.25 - Step 5: Solve for x
x = 87,324,109.25/7,634.14 - Step 6: Final answer
x = 11,438.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.