Home / 18,628.28-27,945.28-8,768.60

Finding the Fourth Proportional to 18,628.28, 27,945.28 and 8,768.60

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Solution

The fourth proportional to 18,628.28, 27,945.28 and 8,768.60 is: 13,154.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.28 : 27,945.28 = 8,768.60 : x
  2. Step 2: Convert to fraction form
    18,628.28/27,945.28 = 8,768.60/x
  3. Step 3: Cross multiply
    18,628.28x = 27,945.28 × 8,768.60
  4. Step 4: Simplify right side
    18,628.28x = 245,040,982.21
  5. Step 5: Solve for x
    x = 245,040,982.21/18,628.28
  6. Step 6: Final answer
    x = 13,154.25

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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.