Home / 8,128.98-11,218.50-4,944.51

Finding the Fourth Proportional to 8,128.98, 11,218.50 and 4,944.51

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Solution

The fourth proportional to 8,128.98, 11,218.50 and 4,944.51 is: 6,823.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.98 : 11,218.50 = 4,944.51 : x
  2. Step 2: Convert to fraction form
    8,128.98/11,218.50 = 4,944.51/x
  3. Step 3: Cross multiply
    8,128.98x = 11,218.50 × 4,944.51
  4. Step 4: Simplify right side
    8,128.98x = 55,469,985.44
  5. Step 5: Solve for x
    x = 55,469,985.44/8,128.98
  6. Step 6: Final answer
    x = 6,823.73

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Double scale
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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.