Home / 18,221.56-25,145.24-10,263.60

Finding the Fourth Proportional to 18,221.56, 25,145.24 and 10,263.60

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Solution

The fourth proportional to 18,221.56, 25,145.24 and 10,263.60 is: 14,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.56 : 25,145.24 = 10,263.60 : x
  2. Step 2: Convert to fraction form
    18,221.56/25,145.24 = 10,263.60/x
  3. Step 3: Cross multiply
    18,221.56x = 25,145.24 × 10,263.60
  4. Step 4: Simplify right side
    18,221.56x = 258,080,633.95
  5. Step 5: Solve for x
    x = 258,080,633.95/18,221.56
  6. Step 6: Final answer
    x = 14,163.48

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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.