Finding the Fourth Proportional to 8,971.49, 13,455.64 and 2,729.99
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Solution
The fourth proportional to 8,971.49, 13,455.64 and 2,729.99 is: 4,094.50
Step by Step Solution
- Step 1: Write the proportion equation
8,971.49 : 13,455.64 = 2,729.99 : x - Step 2: Convert to fraction form
8,971.49/13,455.64 = 2,729.99/x - Step 3: Cross multiply
8,971.49x = 13,455.64 × 2,729.99 - Step 4: Simplify right side
8,971.49x = 36,733,748.99 - Step 5: Solve for x
x = 36,733,748.99/8,971.49 - Step 6: Final answer
x = 4,094.50
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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.