Finding the Fourth Proportional to 8,487.79, 11,709.94 and 6,254.99
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Solution
The fourth proportional to 8,487.79, 11,709.94 and 6,254.99 is: 8,629.52
Step by Step Solution
- Step 1: Write the proportion equation
8,487.79 : 11,709.94 = 6,254.99 : x - Step 2: Convert to fraction form
8,487.79/11,709.94 = 6,254.99/x - Step 3: Cross multiply
8,487.79x = 11,709.94 × 6,254.99 - Step 4: Simplify right side
8,487.79x = 73,245,557.60 - Step 5: Solve for x
x = 73,245,557.60/8,487.79 - Step 6: Final answer
x = 8,629.52
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1.5x scale
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.