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Finding the Fourth Proportional to 12,676.17, 18,999.18 and 5,912.67

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Solution

The fourth proportional to 12,676.17, 18,999.18 and 5,912.67 is: 8,861.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,676.17 : 18,999.18 = 5,912.67 : x
  2. Step 2: Convert to fraction form
    12,676.17/18,999.18 = 5,912.67/x
  3. Step 3: Cross multiply
    12,676.17x = 18,999.18 × 5,912.67
  4. Step 4: Simplify right side
    12,676.17x = 112,335,881.61
  5. Step 5: Solve for x
    x = 112,335,881.61/12,676.17
  6. Step 6: Final answer
    x = 8,861.97

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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.