Home / 11,845.85-17,769.81-3,080.76

Finding the Fourth Proportional to 11,845.85, 17,769.81 and 3,080.76

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Solution

The fourth proportional to 11,845.85, 17,769.81 and 3,080.76 is: 4,621.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,845.85 : 17,769.81 = 3,080.76 : x
  2. Step 2: Convert to fraction form
    11,845.85/17,769.81 = 3,080.76/x
  3. Step 3: Cross multiply
    11,845.85x = 17,769.81 × 3,080.76
  4. Step 4: Simplify right side
    11,845.85x = 54,744,519.86
  5. Step 5: Solve for x
    x = 54,744,519.86/11,845.85
  6. Step 6: Final answer
    x = 4,621.41

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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.