Home / 7,943.25-11,954.79-5,979.06

Finding the Fourth Proportional to 7,943.25, 11,954.79 and 5,979.06

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Solution

The fourth proportional to 7,943.25, 11,954.79 and 5,979.06 is: 8,998.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.25 : 11,954.79 = 5,979.06 : x
  2. Step 2: Convert to fraction form
    7,943.25/11,954.79 = 5,979.06/x
  3. Step 3: Cross multiply
    7,943.25x = 11,954.79 × 5,979.06
  4. Step 4: Simplify right side
    7,943.25x = 71,478,406.70
  5. Step 5: Solve for x
    x = 71,478,406.70/7,943.25
  6. Step 6: Final answer
    x = 8,998.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.