Home / 8,114.04-11,198.79-5,128.92

Finding the Fourth Proportional to 8,114.04, 11,198.79 and 5,128.92

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Solution

The fourth proportional to 8,114.04, 11,198.79 and 5,128.92 is: 7,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.04 : 11,198.79 = 5,128.92 : x
  2. Step 2: Convert to fraction form
    8,114.04/11,198.79 = 5,128.92/x
  3. Step 3: Cross multiply
    8,114.04x = 11,198.79 × 5,128.92
  4. Step 4: Simplify right side
    8,114.04x = 57,437,698.01
  5. Step 5: Solve for x
    x = 57,437,698.01/8,114.04
  6. Step 6: Final answer
    x = 7,078.80

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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.