Home / 11,806.91-16,291.81-6,771.35

Finding the Fourth Proportional to 11,806.91, 16,291.81 and 6,771.35

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Solution

The fourth proportional to 11,806.91, 16,291.81 and 6,771.35 is: 9,343.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,806.91 : 16,291.81 = 6,771.35 : x
  2. Step 2: Convert to fraction form
    11,806.91/16,291.81 = 6,771.35/x
  3. Step 3: Cross multiply
    11,806.91x = 16,291.81 × 6,771.35
  4. Step 4: Simplify right side
    11,806.91x = 110,317,449.26
  5. Step 5: Solve for x
    x = 110,317,449.26/11,806.91
  6. Step 6: Final answer
    x = 9,343.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.