Home / 18,782.85-28,171.44-6,300.75

Finding the Fourth Proportional to 18,782.85, 28,171.44 and 6,300.75

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Solution

The fourth proportional to 18,782.85, 28,171.44 and 6,300.75 is: 9,450.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782.85 : 28,171.44 = 6,300.75 : x
  2. Step 2: Convert to fraction form
    18,782.85/28,171.44 = 6,300.75/x
  3. Step 3: Cross multiply
    18,782.85x = 28,171.44 × 6,300.75
  4. Step 4: Simplify right side
    18,782.85x = 177,501,200.58
  5. Step 5: Solve for x
    x = 177,501,200.58/18,782.85
  6. Step 6: Final answer
    x = 9,450.17

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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.