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Finding the Fourth Proportional to 8,810.96, 13,229.10 and 7,728.44

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Solution

The fourth proportional to 8,810.96, 13,229.10 and 7,728.44 is: 11,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.96 : 13,229.10 = 7,728.44 : x
  2. Step 2: Convert to fraction form
    8,810.96/13,229.10 = 7,728.44/x
  3. Step 3: Cross multiply
    8,810.96x = 13,229.10 × 7,728.44
  4. Step 4: Simplify right side
    8,810.96x = 102,240,305.60
  5. Step 5: Solve for x
    x = 102,240,305.60/8,810.96
  6. Step 6: Final answer
    x = 11,603.76

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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.