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Finding the Fourth Proportional to 8,064.78, 11,128.80 and 4,528.54

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Solution

The fourth proportional to 8,064.78, 11,128.80 and 4,528.54 is: 6,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,064.78 : 11,128.80 = 4,528.54 : x
  2. Step 2: Convert to fraction form
    8,064.78/11,128.80 = 4,528.54/x
  3. Step 3: Cross multiply
    8,064.78x = 11,128.80 × 4,528.54
  4. Step 4: Simplify right side
    8,064.78x = 50,397,215.95
  5. Step 5: Solve for x
    x = 50,397,215.95/8,064.78
  6. Step 6: Final answer
    x = 6,249.05

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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.