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Finding the Fourth Proportional to 15,190.40, 22,785.60 and 11,059.40

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Solution

The fourth proportional to 15,190.40, 22,785.60 and 11,059.40 is: 16,589.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.40 : 22,785.60 = 11,059.40 : x
  2. Step 2: Convert to fraction form
    15,190.40/22,785.60 = 11,059.40/x
  3. Step 3: Cross multiply
    15,190.40x = 22,785.60 × 11,059.40
  4. Step 4: Simplify right side
    15,190.40x = 251,995,064.64
  5. Step 5: Solve for x
    x = 251,995,064.64/15,190.40
  6. Step 6: Final answer
    x = 16,589.10

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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.