Home / 12,180.94-18,260.48-4,790.71

Finding the Fourth Proportional to 12,180.94, 18,260.48 and 4,790.71

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Solution

The fourth proportional to 12,180.94, 18,260.48 and 4,790.71 is: 7,181.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.94 : 18,260.48 = 4,790.71 : x
  2. Step 2: Convert to fraction form
    12,180.94/18,260.48 = 4,790.71/x
  3. Step 3: Cross multiply
    12,180.94x = 18,260.48 × 4,790.71
  4. Step 4: Simplify right side
    12,180.94x = 87,480,560.86
  5. Step 5: Solve for x
    x = 87,480,560.86/12,180.94
  6. Step 6: Final answer
    x = 7,181.76

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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.