Finding the Fourth Proportional to 17,985.98, 26,978.97 and 4,839.68
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Solution
The fourth proportional to 17,985.98, 26,978.97 and 4,839.68 is: 7,259.52
Step by Step Solution
- Step 1: Write the proportion equation
17,985.98 : 26,978.97 = 4,839.68 : x - Step 2: Convert to fraction form
17,985.98/26,978.97 = 4,839.68/x - Step 3: Cross multiply
17,985.98x = 26,978.97 × 4,839.68 - Step 4: Simplify right side
17,985.98x = 130,569,667.13 - Step 5: Solve for x
x = 130,569,667.13/17,985.98 - Step 6: Final answer
x = 7,259.52
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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.