Home / 18,009.18-27,021.87-11,433.60

Finding the Fourth Proportional to 18,009.18, 27,021.87 and 11,433.60

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Solution

The fourth proportional to 18,009.18, 27,021.87 and 11,433.60 is: 17,155.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.18 : 27,021.87 = 11,433.60 : x
  2. Step 2: Convert to fraction form
    18,009.18/27,021.87 = 11,433.60/x
  3. Step 3: Cross multiply
    18,009.18x = 27,021.87 × 11,433.60
  4. Step 4: Simplify right side
    18,009.18x = 308,957,252.83
  5. Step 5: Solve for x
    x = 308,957,252.83/18,009.18
  6. Step 6: Final answer
    x = 17,155.54

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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.