Home / 13,625.20-18,797.88-8,912.17

Finding the Fourth Proportional to 13,625.20, 18,797.88 and 8,912.17

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Solution

The fourth proportional to 13,625.20, 18,797.88 and 8,912.17 is: 12,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.20 : 18,797.88 = 8,912.17 : x
  2. Step 2: Convert to fraction form
    13,625.20/18,797.88 = 8,912.17/x
  3. Step 3: Cross multiply
    13,625.20x = 18,797.88 × 8,912.17
  4. Step 4: Simplify right side
    13,625.20x = 167,529,902.20
  5. Step 5: Solve for x
    x = 167,529,902.20/13,625.20
  6. Step 6: Final answer
    x = 12,295.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.