Finding the Fourth Proportional to 19,656.99, 27,125.73 and 11,157.99
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Solution
The fourth proportional to 19,656.99, 27,125.73 and 11,157.99 is: 15,397.51
Step by Step Solution
- Step 1: Write the proportion equation
19,656.99 : 27,125.73 = 11,157.99 : x - Step 2: Convert to fraction form
19,656.99/27,125.73 = 11,157.99/x - Step 3: Cross multiply
19,656.99x = 27,125.73 × 11,157.99 - Step 4: Simplify right side
19,656.99x = 302,668,683.96 - Step 5: Solve for x
x = 302,668,683.96/19,656.99 - Step 6: Final answer
x = 15,397.51
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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.