Finding the Fourth Proportional to 13,472.14, 18,603.30 and 8,444.99
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Solution
The fourth proportional to 13,472.14, 18,603.30 and 8,444.99 is: 11,661.45
Step by Step Solution
- Step 1: Write the proportion equation
13,472.14 : 18,603.30 = 8,444.99 : x - Step 2: Convert to fraction form
13,472.14/18,603.30 = 8,444.99/x - Step 3: Cross multiply
13,472.14x = 18,603.30 × 8,444.99 - Step 4: Simplify right side
13,472.14x = 157,104,682.47 - Step 5: Solve for x
x = 157,104,682.47/13,472.14 - Step 6: Final answer
x = 11,661.45
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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.