Home / 12,231.06-18,349.28-3,911.75

Finding the Fourth Proportional to 12,231.06, 18,349.28 and 3,911.75

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Solution

The fourth proportional to 12,231.06, 18,349.28 and 3,911.75 is: 5,868.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.06 : 18,349.28 = 3,911.75 : x
  2. Step 2: Convert to fraction form
    12,231.06/18,349.28 = 3,911.75/x
  3. Step 3: Cross multiply
    12,231.06x = 18,349.28 × 3,911.75
  4. Step 4: Simplify right side
    12,231.06x = 71,777,796.04
  5. Step 5: Solve for x
    x = 71,777,796.04/12,231.06
  6. Step 6: Final answer
    x = 5,868.49

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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.