Home / 8,855.38-12,219.94-5,078.36

Finding the Fourth Proportional to 8,855.38, 12,219.94 and 5,078.36

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Solution

The fourth proportional to 8,855.38, 12,219.94 and 5,078.36 is: 7,007.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.38 : 12,219.94 = 5,078.36 : x
  2. Step 2: Convert to fraction form
    8,855.38/12,219.94 = 5,078.36/x
  3. Step 3: Cross multiply
    8,855.38x = 12,219.94 × 5,078.36
  4. Step 4: Simplify right side
    8,855.38x = 62,057,206.09
  5. Step 5: Solve for x
    x = 62,057,206.09/8,855.38
  6. Step 6: Final answer
    x = 7,007.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.