Finding the Fourth Proportional to 18,860.13, 26,027.10 and 11,790.63
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Solution
The fourth proportional to 18,860.13, 26,027.10 and 11,790.63 is: 16,271.14
Step by Step Solution
- Step 1: Write the proportion equation
18,860.13 : 26,027.10 = 11,790.63 : x - Step 2: Convert to fraction form
18,860.13/26,027.10 = 11,790.63/x - Step 3: Cross multiply
18,860.13x = 26,027.10 × 11,790.63 - Step 4: Simplify right side
18,860.13x = 306,875,906.07 - Step 5: Solve for x
x = 306,875,906.07/18,860.13 - Step 6: Final answer
x = 16,271.14
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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.