Finding the Fourth Proportional to 7,995.08, 11,989.74 and 3,378.44
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Solution
The fourth proportional to 7,995.08, 11,989.74 and 3,378.44 is: 5,066.44
Step by Step Solution
- Step 1: Write the proportion equation
7,995.08 : 11,989.74 = 3,378.44 : x - Step 2: Convert to fraction form
7,995.08/11,989.74 = 3,378.44/x - Step 3: Cross multiply
7,995.08x = 11,989.74 × 3,378.44 - Step 4: Simplify right side
7,995.08x = 40,506,617.21 - Step 5: Solve for x
x = 40,506,617.21/7,995.08 - Step 6: Final answer
x = 5,066.44
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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.