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Finding the Fourth Proportional to 7,969.77, 11,955.07 and 2,422.68

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Solution

The fourth proportional to 7,969.77, 11,955.07 and 2,422.68 is: 3,634.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.77 : 11,955.07 = 2,422.68 : x
  2. Step 2: Convert to fraction form
    7,969.77/11,955.07 = 2,422.68/x
  3. Step 3: Cross multiply
    7,969.77x = 11,955.07 × 2,422.68
  4. Step 4: Simplify right side
    7,969.77x = 28,963,344.93
  5. Step 5: Solve for x
    x = 28,963,344.93/7,969.77
  6. Step 6: Final answer
    x = 3,634.15

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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.