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Finding the Fourth Proportional to 16,257.28, 22,435.14 and 8,805.28

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Solution

The fourth proportional to 16,257.28, 22,435.14 and 8,805.28 is: 12,151.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,257.28 : 22,435.14 = 8,805.28 : x
  2. Step 2: Convert to fraction form
    16,257.28/22,435.14 = 8,805.28/x
  3. Step 3: Cross multiply
    16,257.28x = 22,435.14 × 8,805.28
  4. Step 4: Simplify right side
    16,257.28x = 197,547,689.54
  5. Step 5: Solve for x
    x = 197,547,689.54/16,257.28
  6. Step 6: Final answer
    x = 12,151.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.