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Finding the Fourth Proportional to 16,299.50, 22,491.41 and 9,128.39

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Solution

The fourth proportional to 16,299.50, 22,491.41 and 9,128.39 is: 12,596.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,299.50 : 22,491.41 = 9,128.39 : x
  2. Step 2: Convert to fraction form
    16,299.50/22,491.41 = 9,128.39/x
  3. Step 3: Cross multiply
    16,299.50x = 22,491.41 × 9,128.39
  4. Step 4: Simplify right side
    16,299.50x = 205,310,204.03
  5. Step 5: Solve for x
    x = 205,310,204.03/16,299.50
  6. Step 6: Final answer
    x = 12,596.11

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1.5x scale

Why These Related Problems?

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