Home / 18,215.75-27,321.23-5,735.84

Finding the Fourth Proportional to 18,215.75, 27,321.23 and 5,735.84

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Solution

The fourth proportional to 18,215.75, 27,321.23 and 5,735.84 is: 8,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.75 : 27,321.23 = 5,735.84 : x
  2. Step 2: Convert to fraction form
    18,215.75/27,321.23 = 5,735.84/x
  3. Step 3: Cross multiply
    18,215.75x = 27,321.23 × 5,735.84
  4. Step 4: Simplify right side
    18,215.75x = 156,710,203.88
  5. Step 5: Solve for x
    x = 156,710,203.88/18,215.75
  6. Step 6: Final answer
    x = 8,603.01

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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.