Finding the Fourth Proportional to 13,842.62, 19,102.80 and 7,554.99
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Solution
The fourth proportional to 13,842.62, 19,102.80 and 7,554.99 is: 10,425.88
Step by Step Solution
- Step 1: Write the proportion equation
13,842.62 : 19,102.80 = 7,554.99 : x - Step 2: Convert to fraction form
13,842.62/19,102.80 = 7,554.99/x - Step 3: Cross multiply
13,842.62x = 19,102.80 × 7,554.99 - Step 4: Simplify right side
13,842.62x = 144,321,462.97 - Step 5: Solve for x
x = 144,321,462.97/13,842.62 - Step 6: Final answer
x = 10,425.88
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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.