Home / 18,932.85-28,399.32-7,086.15

Finding the Fourth Proportional to 18,932.85, 28,399.32 and 7,086.15

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Solution

The fourth proportional to 18,932.85, 28,399.32 and 7,086.15 is: 10,629.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.85 : 28,399.32 = 7,086.15 : x
  2. Step 2: Convert to fraction form
    18,932.85/28,399.32 = 7,086.15/x
  3. Step 3: Cross multiply
    18,932.85x = 28,399.32 × 7,086.15
  4. Step 4: Simplify right side
    18,932.85x = 201,241,686.73
  5. Step 5: Solve for x
    x = 201,241,686.73/18,932.85
  6. Step 6: Final answer
    x = 10,629.23

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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.