Home / 7,947.69-11,922.84-2,682.20

Finding the Fourth Proportional to 7,947.69, 11,922.84 and 2,682.20

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Solution

The fourth proportional to 7,947.69, 11,922.84 and 2,682.20 is: 4,023.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.69 : 11,922.84 = 2,682.20 : x
  2. Step 2: Convert to fraction form
    7,947.69/11,922.84 = 2,682.20/x
  3. Step 3: Cross multiply
    7,947.69x = 11,922.84 × 2,682.20
  4. Step 4: Simplify right side
    7,947.69x = 31,979,381.83
  5. Step 5: Solve for x
    x = 31,979,381.83/7,947.69
  6. Step 6: Final answer
    x = 4,023.73

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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.