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Finding the Fourth Proportional to 16,491.85, 22,758.83 and 8,938.19

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Solution

The fourth proportional to 16,491.85, 22,758.83 and 8,938.19 is: 12,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,491.85 : 22,758.83 = 8,938.19 : x
  2. Step 2: Convert to fraction form
    16,491.85/22,758.83 = 8,938.19/x
  3. Step 3: Cross multiply
    16,491.85x = 22,758.83 × 8,938.19
  4. Step 4: Simplify right side
    16,491.85x = 203,422,746.72
  5. Step 5: Solve for x
    x = 203,422,746.72/16,491.85
  6. Step 6: Final answer
    x = 12,334.74

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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.