Home / 18,520.08-25,556.73-10,134.96

Finding the Fourth Proportional to 18,520.08, 25,556.73 and 10,134.96

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Solution

The fourth proportional to 18,520.08, 25,556.73 and 10,134.96 is: 13,985.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.08 : 25,556.73 = 10,134.96 : x
  2. Step 2: Convert to fraction form
    18,520.08/25,556.73 = 10,134.96/x
  3. Step 3: Cross multiply
    18,520.08x = 25,556.73 × 10,134.96
  4. Step 4: Simplify right side
    18,520.08x = 259,016,436.28
  5. Step 5: Solve for x
    x = 259,016,436.28/18,520.08
  6. Step 6: Final answer
    x = 13,985.71

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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.