Home / 11,861.18-17,789.75-3,962.80

Finding the Fourth Proportional to 11,861.18, 17,789.75 and 3,962.80

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Solution

The fourth proportional to 11,861.18, 17,789.75 and 3,962.80 is: 5,943.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.18 : 17,789.75 = 3,962.80 : x
  2. Step 2: Convert to fraction form
    11,861.18/17,789.75 = 3,962.80/x
  3. Step 3: Cross multiply
    11,861.18x = 17,789.75 × 3,962.80
  4. Step 4: Simplify right side
    11,861.18x = 70,497,231.21
  5. Step 5: Solve for x
    x = 70,497,231.21/11,861.18
  6. Step 6: Final answer
    x = 5,943.53

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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.