Home / 7,847.45-11,779.37-5,769.80

Finding the Fourth Proportional to 7,847.45, 11,779.37 and 5,769.80

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Solution

The fourth proportional to 7,847.45, 11,779.37 and 5,769.80 is: 8,660.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.45 : 11,779.37 = 5,769.80 : x
  2. Step 2: Convert to fraction form
    7,847.45/11,779.37 = 5,769.80/x
  3. Step 3: Cross multiply
    7,847.45x = 11,779.37 × 5,769.80
  4. Step 4: Simplify right side
    7,847.45x = 67,964,609.03
  5. Step 5: Solve for x
    x = 67,964,609.03/7,847.45
  6. Step 6: Final answer
    x = 8,660.73

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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.