Finding the Fourth Proportional to 13,031.67, 19,547.50 and 5,238.66
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Solution
The fourth proportional to 13,031.67, 19,547.50 and 5,238.66 is: 7,857.99
Step by Step Solution
- Step 1: Write the proportion equation
13,031.67 : 19,547.50 = 5,238.66 : x - Step 2: Convert to fraction form
13,031.67/19,547.50 = 5,238.66/x - Step 3: Cross multiply
13,031.67x = 19,547.50 × 5,238.66 - Step 4: Simplify right side
13,031.67x = 102,402,693.25 - Step 5: Solve for x
x = 102,402,693.25/13,031.67 - Step 6: Final answer
x = 7,857.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.