Home / 8,126.44-11,208.72-6,879.04

Finding the Fourth Proportional to 8,126.44, 11,208.72 and 6,879.04

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Solution

The fourth proportional to 8,126.44, 11,208.72 and 6,879.04 is: 9,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.44 : 11,208.72 = 6,879.04 : x
  2. Step 2: Convert to fraction form
    8,126.44/11,208.72 = 6,879.04/x
  3. Step 3: Cross multiply
    8,126.44x = 11,208.72 × 6,879.04
  4. Step 4: Simplify right side
    8,126.44x = 77,105,233.23
  5. Step 5: Solve for x
    x = 77,105,233.23/8,126.44
  6. Step 6: Final answer
    x = 9,488.19

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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.