Home / 12,269.76-18,391.50-4,863.96

Finding the Fourth Proportional to 12,269.76, 18,391.50 and 4,863.96

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Solution

The fourth proportional to 12,269.76, 18,391.50 and 4,863.96 is: 7,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.76 : 18,391.50 = 4,863.96 : x
  2. Step 2: Convert to fraction form
    12,269.76/18,391.50 = 4,863.96/x
  3. Step 3: Cross multiply
    12,269.76x = 18,391.50 × 4,863.96
  4. Step 4: Simplify right side
    12,269.76x = 89,455,520.34
  5. Step 5: Solve for x
    x = 89,455,520.34/12,269.76
  6. Step 6: Final answer
    x = 7,290.73

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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.