Home / 12,310.86-18,467.85-4,518.54

Finding the Fourth Proportional to 12,310.86, 18,467.85 and 4,518.54

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Solution

The fourth proportional to 12,310.86, 18,467.85 and 4,518.54 is: 6,778.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.86 : 18,467.85 = 4,518.54 : x
  2. Step 2: Convert to fraction form
    12,310.86/18,467.85 = 4,518.54/x
  3. Step 3: Cross multiply
    12,310.86x = 18,467.85 × 4,518.54
  4. Step 4: Simplify right side
    12,310.86x = 83,447,718.94
  5. Step 5: Solve for x
    x = 83,447,718.94/12,310.86
  6. Step 6: Final answer
    x = 6,778.38

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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.