Finding the Fourth Proportional to 19,209.58, 26,508.40 and 14,171.99
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Solution
The fourth proportional to 19,209.58, 26,508.40 and 14,171.99 is: 19,556.73
Step by Step Solution
- Step 1: Write the proportion equation
19,209.58 : 26,508.40 = 14,171.99 : x - Step 2: Convert to fraction form
19,209.58/26,508.40 = 14,171.99/x - Step 3: Cross multiply
19,209.58x = 26,508.40 × 14,171.99 - Step 4: Simplify right side
19,209.58x = 375,676,611.74 - Step 5: Solve for x
x = 375,676,611.74/19,209.58 - Step 6: Final answer
x = 19,556.73
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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.