Home / 18,912.03-28,363.49-8,376.23

Finding the Fourth Proportional to 18,912.03, 28,363.49 and 8,376.23

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Solution

The fourth proportional to 18,912.03, 28,363.49 and 8,376.23 is: 12,562.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.03 : 28,363.49 = 8,376.23 : x
  2. Step 2: Convert to fraction form
    18,912.03/28,363.49 = 8,376.23/x
  3. Step 3: Cross multiply
    18,912.03x = 28,363.49 × 8,376.23
  4. Step 4: Simplify right side
    18,912.03x = 237,579,115.84
  5. Step 5: Solve for x
    x = 237,579,115.84/18,912.03
  6. Step 6: Final answer
    x = 12,562.33

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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.