Home / 18,633.10-27,949.68-5,485.62

Finding the Fourth Proportional to 18,633.10, 27,949.68 and 5,485.62

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Solution

The fourth proportional to 18,633.10, 27,949.68 and 5,485.62 is: 8,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.10 : 27,949.68 = 5,485.62 : x
  2. Step 2: Convert to fraction form
    18,633.10/27,949.68 = 5,485.62/x
  3. Step 3: Cross multiply
    18,633.10x = 27,949.68 × 5,485.62
  4. Step 4: Simplify right side
    18,633.10x = 153,321,323.60
  5. Step 5: Solve for x
    x = 153,321,323.60/18,633.10
  6. Step 6: Final answer
    x = 8,228.44

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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.