Home / 12,190.32-16,828.26-8,608.20

Finding the Fourth Proportional to 12,190.32, 16,828.26 and 8,608.20

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Solution

The fourth proportional to 12,190.32, 16,828.26 and 8,608.20 is: 11,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.32 : 16,828.26 = 8,608.20 : x
  2. Step 2: Convert to fraction form
    12,190.32/16,828.26 = 8,608.20/x
  3. Step 3: Cross multiply
    12,190.32x = 16,828.26 × 8,608.20
  4. Step 4: Simplify right side
    12,190.32x = 144,861,027.73
  5. Step 5: Solve for x
    x = 144,861,027.73/12,190.32
  6. Step 6: Final answer
    x = 11,883.28

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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.