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Finding the Fourth Proportional to 16,403.94, 22,638.69 and 9,329.94

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Solution

The fourth proportional to 16,403.94, 22,638.69 and 9,329.94 is: 12,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,403.94 : 22,638.69 = 9,329.94 : x
  2. Step 2: Convert to fraction form
    16,403.94/22,638.69 = 9,329.94/x
  3. Step 3: Cross multiply
    16,403.94x = 22,638.69 × 9,329.94
  4. Step 4: Simplify right side
    16,403.94x = 211,217,619.38
  5. Step 5: Solve for x
    x = 211,217,619.38/16,403.94
  6. Step 6: Final answer
    x = 12,876.03

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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.