Home / 8,051.22-11,108.03-5,220.78

Finding the Fourth Proportional to 8,051.22, 11,108.03 and 5,220.78

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Solution

The fourth proportional to 8,051.22, 11,108.03 and 5,220.78 is: 7,202.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,051.22 : 11,108.03 = 5,220.78 : x
  2. Step 2: Convert to fraction form
    8,051.22/11,108.03 = 5,220.78/x
  3. Step 3: Cross multiply
    8,051.22x = 11,108.03 × 5,220.78
  4. Step 4: Simplify right side
    8,051.22x = 57,992,580.86
  5. Step 5: Solve for x
    x = 57,992,580.86/8,051.22
  6. Step 6: Final answer
    x = 7,202.96

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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.