Home / 7,955.64-11,932.53-2,112.70

Finding the Fourth Proportional to 7,955.64, 11,932.53 and 2,112.70

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Solution

The fourth proportional to 7,955.64, 11,932.53 and 2,112.70 is: 3,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.64 : 11,932.53 = 2,112.70 : x
  2. Step 2: Convert to fraction form
    7,955.64/11,932.53 = 2,112.70/x
  3. Step 3: Cross multiply
    7,955.64x = 11,932.53 × 2,112.70
  4. Step 4: Simplify right side
    7,955.64x = 25,209,845.57
  5. Step 5: Solve for x
    x = 25,209,845.57/7,955.64
  6. Step 6: Final answer
    x = 3,168.80

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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.