Home / 10,790.38-16,185.57-3,869.74

Finding the Fourth Proportional to 10,790.38, 16,185.57 and 3,869.74

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Solution

The fourth proportional to 10,790.38, 16,185.57 and 3,869.74 is: 5,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.38 : 16,185.57 = 3,869.74 : x
  2. Step 2: Convert to fraction form
    10,790.38/16,185.57 = 3,869.74/x
  3. Step 3: Cross multiply
    10,790.38x = 16,185.57 × 3,869.74
  4. Step 4: Simplify right side
    10,790.38x = 62,633,947.65
  5. Step 5: Solve for x
    x = 62,633,947.65/10,790.38
  6. Step 6: Final answer
    x = 5,804.61

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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.