Home / 18,144.30-27,219.64-8,284.58

Finding the Fourth Proportional to 18,144.30, 27,219.64 and 8,284.58

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Solution

The fourth proportional to 18,144.30, 27,219.64 and 8,284.58 is: 12,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.30 : 27,219.64 = 8,284.58 : x
  2. Step 2: Convert to fraction form
    18,144.30/27,219.64 = 8,284.58/x
  3. Step 3: Cross multiply
    18,144.30x = 27,219.64 × 8,284.58
  4. Step 4: Simplify right side
    18,144.30x = 225,503,107.63
  5. Step 5: Solve for x
    x = 225,503,107.63/18,144.30
  6. Step 6: Final answer
    x = 12,428.32

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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.