Home / 11,477.82-17,216.50-3,157.80

Finding the Fourth Proportional to 11,477.82, 17,216.50 and 3,157.80

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Solution

The fourth proportional to 11,477.82, 17,216.50 and 3,157.80 is: 4,736.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.82 : 17,216.50 = 3,157.80 : x
  2. Step 2: Convert to fraction form
    11,477.82/17,216.50 = 3,157.80/x
  3. Step 3: Cross multiply
    11,477.82x = 17,216.50 × 3,157.80
  4. Step 4: Simplify right side
    11,477.82x = 54,366,263.70
  5. Step 5: Solve for x
    x = 54,366,263.70/11,477.82
  6. Step 6: Final answer
    x = 4,736.64

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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.