Home / 18,409.21-27,610.20-7,164.59

Finding the Fourth Proportional to 18,409.21, 27,610.20 and 7,164.59

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Solution

The fourth proportional to 18,409.21, 27,610.20 and 7,164.59 is: 10,745.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.21 : 27,610.20 = 7,164.59 : x
  2. Step 2: Convert to fraction form
    18,409.21/27,610.20 = 7,164.59/x
  3. Step 3: Cross multiply
    18,409.21x = 27,610.20 × 7,164.59
  4. Step 4: Simplify right side
    18,409.21x = 197,815,624.77
  5. Step 5: Solve for x
    x = 197,815,624.77/18,409.21
  6. Step 6: Final answer
    x = 10,745.47

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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.