Finding the Fourth Proportional to 13,588.24, 18,751.97 and 8,209.93
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Solution
The fourth proportional to 13,588.24, 18,751.97 and 8,209.93 is: 11,329.82
Step by Step Solution
- Step 1: Write the proportion equation
13,588.24 : 18,751.97 = 8,209.93 : x - Step 2: Convert to fraction form
13,588.24/18,751.97 = 8,209.93/x - Step 3: Cross multiply
13,588.24x = 18,751.97 × 8,209.93 - Step 4: Simplify right side
13,588.24x = 153,952,387.97 - Step 5: Solve for x
x = 153,952,387.97/13,588.24 - Step 6: Final answer
x = 11,329.82
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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.