Home / 12,221.37-18,334.35-5,558.36

Finding the Fourth Proportional to 12,221.37, 18,334.35 and 5,558.36

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Solution

The fourth proportional to 12,221.37, 18,334.35 and 5,558.36 is: 8,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221.37 : 18,334.35 = 5,558.36 : x
  2. Step 2: Convert to fraction form
    12,221.37/18,334.35 = 5,558.36/x
  3. Step 3: Cross multiply
    12,221.37x = 18,334.35 × 5,558.36
  4. Step 4: Simplify right side
    12,221.37x = 101,908,917.67
  5. Step 5: Solve for x
    x = 101,908,917.67/12,221.37
  6. Step 6: Final answer
    x = 8,338.58

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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.