Home / 12,628.95-18,942.74-3,863.86

Finding the Fourth Proportional to 12,628.95, 18,942.74 and 3,863.86

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Solution

The fourth proportional to 12,628.95, 18,942.74 and 3,863.86 is: 5,795.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.95 : 18,942.74 = 3,863.86 : x
  2. Step 2: Convert to fraction form
    12,628.95/18,942.74 = 3,863.86/x
  3. Step 3: Cross multiply
    12,628.95x = 18,942.74 × 3,863.86
  4. Step 4: Simplify right side
    12,628.95x = 73,192,095.38
  5. Step 5: Solve for x
    x = 73,192,095.38/12,628.95
  6. Step 6: Final answer
    x = 5,795.58

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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.