Finding the Fourth Proportional to 11,692.17, 17,538.27 and 3,900.99
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Solution
The fourth proportional to 11,692.17, 17,538.27 and 3,900.99 is: 5,851.49
Step by Step Solution
- Step 1: Write the proportion equation
11,692.17 : 17,538.27 = 3,900.99 : x - Step 2: Convert to fraction form
11,692.17/17,538.27 = 3,900.99/x - Step 3: Cross multiply
11,692.17x = 17,538.27 × 3,900.99 - Step 4: Simplify right side
11,692.17x = 68,416,615.89 - Step 5: Solve for x
x = 68,416,615.89/11,692.17 - Step 6: Final answer
x = 5,851.49
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Double scale
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Similar ratio
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1.5x scale
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.