Home / 7,986.66-11,981.64-2,796.18

Finding the Fourth Proportional to 7,986.66, 11,981.64 and 2,796.18

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Solution

The fourth proportional to 7,986.66, 11,981.64 and 2,796.18 is: 4,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.66 : 11,981.64 = 2,796.18 : x
  2. Step 2: Convert to fraction form
    7,986.66/11,981.64 = 2,796.18/x
  3. Step 3: Cross multiply
    7,986.66x = 11,981.64 × 2,796.18
  4. Step 4: Simplify right side
    7,986.66x = 33,502,822.14
  5. Step 5: Solve for x
    x = 33,502,822.14/7,986.66
  6. Step 6: Final answer
    x = 4,194.85

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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.