Finding the Fourth Proportional to 18,987, 26,201.79 and 11,033.70
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Solution
The fourth proportional to 18,987, 26,201.79 and 11,033.70 is: 15,226.35
Step by Step Solution
- Step 1: Write the proportion equation
18,987 : 26,201.79 = 11,033.70 : x - Step 2: Convert to fraction form
18,987/26,201.79 = 11,033.70/x - Step 3: Cross multiply
18,987x = 26,201.79 × 11,033.70 - Step 4: Simplify right side
18,987x = 289,102,690.32 - Step 5: Solve for x
x = 289,102,690.32/18,987 - Step 6: Final answer
x = 15,226.35
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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.