Finding the Fourth Proportional to 26,636.09, 39,954.15 and 6,912.99
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Solution
The fourth proportional to 26,636.09, 39,954.15 and 6,912.99 is: 10,369.49
Step by Step Solution
- Step 1: Write the proportion equation
26,636.09 : 39,954.15 = 6,912.99 : x - Step 2: Convert to fraction form
26,636.09/39,954.15 = 6,912.99/x - Step 3: Cross multiply
26,636.09x = 39,954.15 × 6,912.99 - Step 4: Simplify right side
26,636.09x = 276,202,639.41 - Step 5: Solve for x
x = 276,202,639.41/26,636.09 - Step 6: Final answer
x = 10,369.49
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Double scale
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Similar ratio
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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.