Home / 11,855.27-16,346.40-8,080.67

Finding the Fourth Proportional to 11,855.27, 16,346.40 and 8,080.67

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Solution

The fourth proportional to 11,855.27, 16,346.40 and 8,080.67 is: 11,141.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.27 : 16,346.40 = 8,080.67 : x
  2. Step 2: Convert to fraction form
    11,855.27/16,346.40 = 8,080.67/x
  3. Step 3: Cross multiply
    11,855.27x = 16,346.40 × 8,080.67
  4. Step 4: Simplify right side
    11,855.27x = 132,089,864.09
  5. Step 5: Solve for x
    x = 132,089,864.09/11,855.27
  6. Step 6: Final answer
    x = 11,141.87

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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.