Home / 12,100.25-18,221.44-10,558.64

Finding the Fourth Proportional to 12,100.25, 18,221.44 and 10,558.64

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Solution

The fourth proportional to 12,100.25, 18,221.44 and 10,558.64 is: 15,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.25 : 18,221.44 = 10,558.64 : x
  2. Step 2: Convert to fraction form
    12,100.25/18,221.44 = 10,558.64/x
  3. Step 3: Cross multiply
    12,100.25x = 18,221.44 × 10,558.64
  4. Step 4: Simplify right side
    12,100.25x = 192,393,625.24
  5. Step 5: Solve for x
    x = 192,393,625.24/12,100.25
  6. Step 6: Final answer
    x = 15,899.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.