Finding the Fourth Proportional to 14,655.18, 20,224.12 and 7,940.99
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Solution
The fourth proportional to 14,655.18, 20,224.12 and 7,940.99 is: 10,958.55
Step by Step Solution
- Step 1: Write the proportion equation
14,655.18 : 20,224.12 = 7,940.99 : x - Step 2: Convert to fraction form
14,655.18/20,224.12 = 7,940.99/x - Step 3: Cross multiply
14,655.18x = 20,224.12 × 7,940.99 - Step 4: Simplify right side
14,655.18x = 160,599,585.24 - Step 5: Solve for x
x = 160,599,585.24/14,655.18 - Step 6: Final answer
x = 10,958.55
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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.