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Finding the Fourth Proportional to 12,676.67, 19,017.50 and 4,354.67

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Solution

The fourth proportional to 12,676.67, 19,017.50 and 4,354.67 is: 6,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,676.67 : 19,017.50 = 4,354.67 : x
  2. Step 2: Convert to fraction form
    12,676.67/19,017.50 = 4,354.67/x
  3. Step 3: Cross multiply
    12,676.67x = 19,017.50 × 4,354.67
  4. Step 4: Simplify right side
    12,676.67x = 82,814,819.86
  5. Step 5: Solve for x
    x = 82,814,819.86/12,676.67
  6. Step 6: Final answer
    x = 6,532.86

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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.