Finding the Fourth Proportional to 15,163.19, 20,924.93 and 8,448.68
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Solution
The fourth proportional to 15,163.19, 20,924.93 and 8,448.68 is: 11,659.02
Step by Step Solution
- Step 1: Write the proportion equation
15,163.19 : 20,924.93 = 8,448.68 : x - Step 2: Convert to fraction form
15,163.19/20,924.93 = 8,448.68/x - Step 3: Cross multiply
15,163.19x = 20,924.93 × 8,448.68 - Step 4: Simplify right side
15,163.19x = 176,787,969.56 - Step 5: Solve for x
x = 176,787,969.56/15,163.19 - Step 6: Final answer
x = 11,659.02
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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.