Home / 7,986.92-11,972.16-3,055.22

Finding the Fourth Proportional to 7,986.92, 11,972.16 and 3,055.22

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Solution

The fourth proportional to 7,986.92, 11,972.16 and 3,055.22 is: 4,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.92 : 11,972.16 = 3,055.22 : x
  2. Step 2: Convert to fraction form
    7,986.92/11,972.16 = 3,055.22/x
  3. Step 3: Cross multiply
    7,986.92x = 11,972.16 × 3,055.22
  4. Step 4: Simplify right side
    7,986.92x = 36,577,582.68
  5. Step 5: Solve for x
    x = 36,577,582.68/7,986.92
  6. Step 6: Final answer
    x = 4,579.69

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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.