Home / 18,147.92-27,169.40-10,628.72

Finding the Fourth Proportional to 18,147.92, 27,169.40 and 10,628.72

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Solution

The fourth proportional to 18,147.92, 27,169.40 and 10,628.72 is: 15,912.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.92 : 27,169.40 = 10,628.72 : x
  2. Step 2: Convert to fraction form
    18,147.92/27,169.40 = 10,628.72/x
  3. Step 3: Cross multiply
    18,147.92x = 27,169.40 × 10,628.72
  4. Step 4: Simplify right side
    18,147.92x = 288,775,945.17
  5. Step 5: Solve for x
    x = 288,775,945.17/18,147.92
  6. Step 6: Final answer
    x = 15,912.34

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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.