Home / 18,261.68-25,201.12-10,305.60

Finding the Fourth Proportional to 18,261.68, 25,201.12 and 10,305.60

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Solution

The fourth proportional to 18,261.68, 25,201.12 and 10,305.60 is: 14,221.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.68 : 25,201.12 = 10,305.60 : x
  2. Step 2: Convert to fraction form
    18,261.68/25,201.12 = 10,305.60/x
  3. Step 3: Cross multiply
    18,261.68x = 25,201.12 × 10,305.60
  4. Step 4: Simplify right side
    18,261.68x = 259,712,662.27
  5. Step 5: Solve for x
    x = 259,712,662.27/18,261.68
  6. Step 6: Final answer
    x = 14,221.73

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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.