Finding the Fourth Proportional to 19,711.06, 27,201.18 and 11,214.50
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Solution
The fourth proportional to 19,711.06, 27,201.18 and 11,214.50 is: 15,475.96
Step by Step Solution
- Step 1: Write the proportion equation
19,711.06 : 27,201.18 = 11,214.50 : x - Step 2: Convert to fraction form
19,711.06/27,201.18 = 11,214.50/x - Step 3: Cross multiply
19,711.06x = 27,201.18 × 11,214.50 - Step 4: Simplify right side
19,711.06x = 305,047,708.08 - Step 5: Solve for x
x = 305,047,708.08/19,711.06 - Step 6: Final answer
x = 15,475.96
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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.