Finding the Fourth Proportional to 7,718.64, 10,645.08 and 6,226
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Solution
The fourth proportional to 7,718.64, 10,645.08 and 6,226 is: 8,586.52
Step by Step Solution
- Step 1: Write the proportion equation
7,718.64 : 10,645.08 = 6,226 : x - Step 2: Convert to fraction form
7,718.64/10,645.08 = 6,226/x - Step 3: Cross multiply
7,718.64x = 10,645.08 × 6,226 - Step 4: Simplify right side
7,718.64x = 66,276,268.08 - Step 5: Solve for x
x = 66,276,268.08/7,718.64 - Step 6: Final answer
x = 8,586.52
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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.