Finding the Fourth Proportional to 7,163.68, 9,886.74 and 4,511
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Solution
The fourth proportional to 7,163.68, 9,886.74 and 4,511 is: 6,225.72
Step by Step Solution
- Step 1: Write the proportion equation
7,163.68 : 9,886.74 = 4,511 : x - Step 2: Convert to fraction form
7,163.68/9,886.74 = 4,511/x - Step 3: Cross multiply
7,163.68x = 9,886.74 × 4,511 - Step 4: Simplify right side
7,163.68x = 44,599,084.14 - Step 5: Solve for x
x = 44,599,084.14/7,163.68 - Step 6: Final answer
x = 6,225.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.