Home / 7,876.06-11,806.83-2,678.32

Finding the Fourth Proportional to 7,876.06, 11,806.83 and 2,678.32

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Solution

The fourth proportional to 7,876.06, 11,806.83 and 2,678.32 is: 4,015.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.06 : 11,806.83 = 2,678.32 : x
  2. Step 2: Convert to fraction form
    7,876.06/11,806.83 = 2,678.32/x
  3. Step 3: Cross multiply
    7,876.06x = 11,806.83 × 2,678.32
  4. Step 4: Simplify right side
    7,876.06x = 31,622,468.93
  5. Step 5: Solve for x
    x = 31,622,468.93/7,876.06
  6. Step 6: Final answer
    x = 4,015.01

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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.