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Finding the Fourth Proportional to 16,865.20, 25,326.60 and 9,089.20

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Solution

The fourth proportional to 16,865.20, 25,326.60 and 9,089.20 is: 13,649.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,865.20 : 25,326.60 = 9,089.20 : x
  2. Step 2: Convert to fraction form
    16,865.20/25,326.60 = 9,089.20/x
  3. Step 3: Cross multiply
    16,865.20x = 25,326.60 × 9,089.20
  4. Step 4: Simplify right side
    16,865.20x = 230,198,532.72
  5. Step 5: Solve for x
    x = 230,198,532.72/16,865.20
  6. Step 6: Final answer
    x = 13,649.32

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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.