Finding the Fourth Proportional to 7,579.44, 11,378.88 and 5,125.14
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Solution
The fourth proportional to 7,579.44, 11,378.88 and 5,125.14 is: 7,694.28
Step by Step Solution
- Step 1: Write the proportion equation
7,579.44 : 11,378.88 = 5,125.14 : x - Step 2: Convert to fraction form
7,579.44/11,378.88 = 5,125.14/x - Step 3: Cross multiply
7,579.44x = 11,378.88 × 5,125.14 - Step 4: Simplify right side
7,579.44x = 58,318,353.04 - Step 5: Solve for x
x = 58,318,353.04/7,579.44 - Step 6: Final answer
x = 7,694.28
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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.