Home / 13,660.22-18,843.97-8,622.63

Finding the Fourth Proportional to 13,660.22, 18,843.97 and 8,622.63

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Solution

The fourth proportional to 13,660.22, 18,843.97 and 8,622.63 is: 11,894.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.22 : 18,843.97 = 8,622.63 : x
  2. Step 2: Convert to fraction form
    13,660.22/18,843.97 = 8,622.63/x
  3. Step 3: Cross multiply
    13,660.22x = 18,843.97 × 8,622.63
  4. Step 4: Simplify right side
    13,660.22x = 162,484,581.04
  5. Step 5: Solve for x
    x = 162,484,581.04/13,660.22
  6. Step 6: Final answer
    x = 11,894.73

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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.