Home / 11,855.62-17,777.46-3,955.32

Finding the Fourth Proportional to 11,855.62, 17,777.46 and 3,955.32

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Solution

The fourth proportional to 11,855.62, 17,777.46 and 3,955.32 is: 5,930.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.62 : 17,777.46 = 3,955.32 : x
  2. Step 2: Convert to fraction form
    11,855.62/17,777.46 = 3,955.32/x
  3. Step 3: Cross multiply
    11,855.62x = 17,777.46 × 3,955.32
  4. Step 4: Simplify right side
    11,855.62x = 70,315,543.09
  5. Step 5: Solve for x
    x = 70,315,543.09/11,855.62
  6. Step 6: Final answer
    x = 5,930.99

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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.