Home / 7,826.08-11,739.12-1,982.72

Finding the Fourth Proportional to 7,826.08, 11,739.12 and 1,982.72

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Solution

The fourth proportional to 7,826.08, 11,739.12 and 1,982.72 is: 2,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.08 : 11,739.12 = 1,982.72 : x
  2. Step 2: Convert to fraction form
    7,826.08/11,739.12 = 1,982.72/x
  3. Step 3: Cross multiply
    7,826.08x = 11,739.12 × 1,982.72
  4. Step 4: Simplify right side
    7,826.08x = 23,275,388.01
  5. Step 5: Solve for x
    x = 23,275,388.01/7,826.08
  6. Step 6: Final answer
    x = 2,974.08

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Similar ratio
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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.