Home / 18,606.44-25,659.29-12,221.77

Finding the Fourth Proportional to 18,606.44, 25,659.29 and 12,221.77

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Solution

The fourth proportional to 18,606.44, 25,659.29 and 12,221.77 is: 16,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.44 : 25,659.29 = 12,221.77 : x
  2. Step 2: Convert to fraction form
    18,606.44/25,659.29 = 12,221.77/x
  3. Step 3: Cross multiply
    18,606.44x = 25,659.29 × 12,221.77
  4. Step 4: Simplify right side
    18,606.44x = 313,601,859.04
  5. Step 5: Solve for x
    x = 313,601,859.04/18,606.44
  6. Step 6: Final answer
    x = 16,854.48

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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.