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Finding the Fourth Proportional to 11,510.39, 17,265.95 and 3,190.48

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Solution

The fourth proportional to 11,510.39, 17,265.95 and 3,190.48 is: 4,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,510.39 : 17,265.95 = 3,190.48 : x
  2. Step 2: Convert to fraction form
    11,510.39/17,265.95 = 3,190.48/x
  3. Step 3: Cross multiply
    11,510.39x = 17,265.95 × 3,190.48
  4. Step 4: Simplify right side
    11,510.39x = 55,086,652.20
  5. Step 5: Solve for x
    x = 55,086,652.20/11,510.39
  6. Step 6: Final answer
    x = 4,785.82

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