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Finding the Fourth Proportional to 8,362.06, 11,540.20 and 4,777.20

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Solution

The fourth proportional to 8,362.06, 11,540.20 and 4,777.20 is: 6,592.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,362.06 : 11,540.20 = 4,777.20 : x
  2. Step 2: Convert to fraction form
    8,362.06/11,540.20 = 4,777.20/x
  3. Step 3: Cross multiply
    8,362.06x = 11,540.20 × 4,777.20
  4. Step 4: Simplify right side
    8,362.06x = 55,129,843.44
  5. Step 5: Solve for x
    x = 55,129,843.44/8,362.06
  6. Step 6: Final answer
    x = 6,592.85

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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.