Finding the Fourth Proportional to 13,970.19, 20,936.70 and 10,254.99
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Solution
The fourth proportional to 13,970.19, 20,936.70 and 10,254.99 is: 15,368.84
Step by Step Solution
- Step 1: Write the proportion equation
13,970.19 : 20,936.70 = 10,254.99 : x - Step 2: Convert to fraction form
13,970.19/20,936.70 = 10,254.99/x - Step 3: Cross multiply
13,970.19x = 20,936.70 × 10,254.99 - Step 4: Simplify right side
13,970.19x = 214,705,649.13 - Step 5: Solve for x
x = 214,705,649.13/13,970.19 - Step 6: Final answer
x = 15,368.84
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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.