Home / 7,964.40-11,947.80-4,066.68

Finding the Fourth Proportional to 7,964.40, 11,947.80 and 4,066.68

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Solution

The fourth proportional to 7,964.40, 11,947.80 and 4,066.68 is: 6,100.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.40 : 11,947.80 = 4,066.68 : x
  2. Step 2: Convert to fraction form
    7,964.40/11,947.80 = 4,066.68/x
  3. Step 3: Cross multiply
    7,964.40x = 11,947.80 × 4,066.68
  4. Step 4: Simplify right side
    7,964.40x = 48,587,879.30
  5. Step 5: Solve for x
    x = 48,587,879.30/7,964.40
  6. Step 6: Final answer
    x = 6,100.63

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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.