Finding the Fourth Proportional to 14,593.76, 20,137.36 and 8,305.44
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Solution
The fourth proportional to 14,593.76, 20,137.36 and 8,305.44 is: 11,460.35
Step by Step Solution
- Step 1: Write the proportion equation
14,593.76 : 20,137.36 = 8,305.44 : x - Step 2: Convert to fraction form
14,593.76/20,137.36 = 8,305.44/x - Step 3: Cross multiply
14,593.76x = 20,137.36 × 8,305.44 - Step 4: Simplify right side
14,593.76x = 167,249,635.24 - Step 5: Solve for x
x = 167,249,635.24/14,593.76 - Step 6: Final answer
x = 11,460.35
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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.