Home / 18,311.97-27,466.07-12,426.65

Finding the Fourth Proportional to 18,311.97, 27,466.07 and 12,426.65

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Solution

The fourth proportional to 18,311.97, 27,466.07 and 12,426.65 is: 18,638.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.97 : 27,466.07 = 12,426.65 : x
  2. Step 2: Convert to fraction form
    18,311.97/27,466.07 = 12,426.65/x
  3. Step 3: Cross multiply
    18,311.97x = 27,466.07 × 12,426.65
  4. Step 4: Simplify right side
    18,311.97x = 341,311,039.30
  5. Step 5: Solve for x
    x = 341,311,039.30/18,311.97
  6. Step 6: Final answer
    x = 18,638.68

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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.