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Finding the Fourth Proportional to 7,892.55, 11,839.97 and 2,625.84

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Solution

The fourth proportional to 7,892.55, 11,839.97 and 2,625.84 is: 3,939.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.55 : 11,839.97 = 2,625.84 : x
  2. Step 2: Convert to fraction form
    7,892.55/11,839.97 = 2,625.84/x
  3. Step 3: Cross multiply
    7,892.55x = 11,839.97 × 2,625.84
  4. Step 4: Simplify right side
    7,892.55x = 31,089,853.70
  5. Step 5: Solve for x
    x = 31,089,853.70/7,892.55
  6. Step 6: Final answer
    x = 3,939.14

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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.