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Finding the Fourth Proportional to 8,877.92, 13,297.78 and 4,190.92

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Solution

The fourth proportional to 8,877.92, 13,297.78 and 4,190.92 is: 6,277.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,877.92 : 13,297.78 = 4,190.92 : x
  2. Step 2: Convert to fraction form
    8,877.92/13,297.78 = 4,190.92/x
  3. Step 3: Cross multiply
    8,877.92x = 13,297.78 × 4,190.92
  4. Step 4: Simplify right side
    8,877.92x = 55,729,932.16
  5. Step 5: Solve for x
    x = 55,729,932.16/8,877.92
  6. Step 6: Final answer
    x = 6,277.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.