Finding the Fourth Proportional to 13,554.99, 20,344.64 and 11,347.65
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Solution
The fourth proportional to 13,554.99, 20,344.64 and 11,347.65 is: 17,031.65
Step by Step Solution
- Step 1: Write the proportion equation
13,554.99 : 20,344.64 = 11,347.65 : x - Step 2: Convert to fraction form
13,554.99/20,344.64 = 11,347.65/x - Step 3: Cross multiply
13,554.99x = 20,344.64 × 11,347.65 - Step 4: Simplify right side
13,554.99x = 230,863,797.36 - Step 5: Solve for x
x = 230,863,797.36/13,554.99 - Step 6: Final answer
x = 17,031.65
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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.