Home / 18,676.66-28,018.83-12,836.02

Finding the Fourth Proportional to 18,676.66, 28,018.83 and 12,836.02

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Solution

The fourth proportional to 18,676.66, 28,018.83 and 12,836.02 is: 19,256.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.66 : 28,018.83 = 12,836.02 : x
  2. Step 2: Convert to fraction form
    18,676.66/28,018.83 = 12,836.02/x
  3. Step 3: Cross multiply
    18,676.66x = 28,018.83 × 12,836.02
  4. Step 4: Simplify right side
    18,676.66x = 359,650,262.26
  5. Step 5: Solve for x
    x = 359,650,262.26/18,676.66
  6. Step 6: Final answer
    x = 19,256.67

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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.