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Finding the Fourth Proportional to 8,110.40, 11,193.60 and 4,755.20

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Solution

The fourth proportional to 8,110.40, 11,193.60 and 4,755.20 is: 6,562.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.40 : 11,193.60 = 4,755.20 : x
  2. Step 2: Convert to fraction form
    8,110.40/11,193.60 = 4,755.20/x
  3. Step 3: Cross multiply
    8,110.40x = 11,193.60 × 4,755.20
  4. Step 4: Simplify right side
    8,110.40x = 53,227,806.72
  5. Step 5: Solve for x
    x = 53,227,806.72/8,110.40
  6. Step 6: Final answer
    x = 6,562.91

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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.