Finding the Fourth Proportional to 7,918.98, 11,878.68 and 6,073.44
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Solution
The fourth proportional to 7,918.98, 11,878.68 and 6,073.44 is: 9,110.32
Step by Step Solution
- Step 1: Write the proportion equation
7,918.98 : 11,878.68 = 6,073.44 : x - Step 2: Convert to fraction form
7,918.98/11,878.68 = 6,073.44/x - Step 3: Cross multiply
7,918.98x = 11,878.68 × 6,073.44 - Step 4: Simplify right side
7,918.98x = 72,144,450.26 - Step 5: Solve for x
x = 72,144,450.26/7,918.98 - Step 6: Final answer
x = 9,110.32
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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.