Finding the Fourth Proportional to 13,924.93, 19,214.62 and 7,956.99
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Solution
The fourth proportional to 13,924.93, 19,214.62 and 7,956.99 is: 10,979.63
Step by Step Solution
- Step 1: Write the proportion equation
13,924.93 : 19,214.62 = 7,956.99 : x - Step 2: Convert to fraction form
13,924.93/19,214.62 = 7,956.99/x - Step 3: Cross multiply
13,924.93x = 19,214.62 × 7,956.99 - Step 4: Simplify right side
13,924.93x = 152,890,539.19 - Step 5: Solve for x
x = 152,890,539.19/13,924.93 - Step 6: Final answer
x = 10,979.63
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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.