Finding the Fourth Proportional to 8,471.68, 11,664.48 and 6,974.80
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Solution
The fourth proportional to 8,471.68, 11,664.48 and 6,974.80 is: 9,603.46
Step by Step Solution
- Step 1: Write the proportion equation
8,471.68 : 11,664.48 = 6,974.80 : x - Step 2: Convert to fraction form
8,471.68/11,664.48 = 6,974.80/x - Step 3: Cross multiply
8,471.68x = 11,664.48 × 6,974.80 - Step 4: Simplify right side
8,471.68x = 81,357,415.10 - Step 5: Solve for x
x = 81,357,415.10/8,471.68 - Step 6: Final answer
x = 9,603.46
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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.