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Finding the Fourth Proportional to 8,054.77, 11,115.64 and 4,420.79

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Solution

The fourth proportional to 8,054.77, 11,115.64 and 4,420.79 is: 6,100.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,054.77 : 11,115.64 = 4,420.79 : x
  2. Step 2: Convert to fraction form
    8,054.77/11,115.64 = 4,420.79/x
  3. Step 3: Cross multiply
    8,054.77x = 11,115.64 × 4,420.79
  4. Step 4: Simplify right side
    8,054.77x = 49,139,910.16
  5. Step 5: Solve for x
    x = 49,139,910.16/8,054.77
  6. Step 6: Final answer
    x = 6,100.73

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Half 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.