Finding the Fourth Proportional to 11,420.08, 17,131.92 and 3,628.28
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Solution
The fourth proportional to 11,420.08, 17,131.92 and 3,628.28 is: 5,442.99
Step by Step Solution
- Step 1: Write the proportion equation
11,420.08 : 17,131.92 = 3,628.28 : x - Step 2: Convert to fraction form
11,420.08/17,131.92 = 3,628.28/x - Step 3: Cross multiply
11,420.08x = 17,131.92 × 3,628.28 - Step 4: Simplify right side
11,420.08x = 62,159,402.70 - Step 5: Solve for x
x = 62,159,402.70/11,420.08 - Step 6: Final answer
x = 5,442.99
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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.