Finding the Fourth Proportional to 13,207.53, 19,699.99 and 12,288.99
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Solution
The fourth proportional to 13,207.53, 19,699.99 and 12,288.99 is: 18,329.92
Step by Step Solution
- Step 1: Write the proportion equation
13,207.53 : 19,699.99 = 12,288.99 : x - Step 2: Convert to fraction form
13,207.53/19,699.99 = 12,288.99/x - Step 3: Cross multiply
13,207.53x = 19,699.99 × 12,288.99 - Step 4: Simplify right side
13,207.53x = 242,092,980.11 - Step 5: Solve for x
x = 242,092,980.11/13,207.53 - Step 6: Final answer
x = 18,329.92
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.