Home / 7,811.22-11,713.66-3,306.45

Finding the Fourth Proportional to 7,811.22, 11,713.66 and 3,306.45

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Solution

The fourth proportional to 7,811.22, 11,713.66 and 3,306.45 is: 4,958.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.22 : 11,713.66 = 3,306.45 : x
  2. Step 2: Convert to fraction form
    7,811.22/11,713.66 = 3,306.45/x
  3. Step 3: Cross multiply
    7,811.22x = 11,713.66 × 3,306.45
  4. Step 4: Simplify right side
    7,811.22x = 38,730,685.37
  5. Step 5: Solve for x
    x = 38,730,685.37/7,811.22
  6. Step 6: Final answer
    x = 4,958.34

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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.