Home / 18,665.45-28,002.23-8,676.33

Finding the Fourth Proportional to 18,665.45, 28,002.23 and 8,676.33

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Solution

The fourth proportional to 18,665.45, 28,002.23 and 8,676.33 is: 13,016.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.45 : 28,002.23 = 8,676.33 : x
  2. Step 2: Convert to fraction form
    18,665.45/28,002.23 = 8,676.33/x
  3. Step 3: Cross multiply
    18,665.45x = 28,002.23 × 8,676.33
  4. Step 4: Simplify right side
    18,665.45x = 242,956,472.36
  5. Step 5: Solve for x
    x = 242,956,472.36/18,665.45
  6. Step 6: Final answer
    x = 13,016.37

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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.