Finding the Fourth Proportional to 13,750.62, 18,976.07 and 7,462.99
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Solution
The fourth proportional to 13,750.62, 18,976.07 and 7,462.99 is: 10,299.04
Step by Step Solution
- Step 1: Write the proportion equation
13,750.62 : 18,976.07 = 7,462.99 : x - Step 2: Convert to fraction form
13,750.62/18,976.07 = 7,462.99/x - Step 3: Cross multiply
13,750.62x = 18,976.07 × 7,462.99 - Step 4: Simplify right side
13,750.62x = 141,618,220.65 - Step 5: Solve for x
x = 141,618,220.65/13,750.62 - Step 6: Final answer
x = 10,299.04
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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.