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Finding the Fourth Proportional to 16,902.78, 23,325.78 and 9,450.78

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Solution

The fourth proportional to 16,902.78, 23,325.78 and 9,450.78 is: 13,042.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,902.78 : 23,325.78 = 9,450.78 : x
  2. Step 2: Convert to fraction form
    16,902.78/23,325.78 = 9,450.78/x
  3. Step 3: Cross multiply
    16,902.78x = 23,325.78 × 9,450.78
  4. Step 4: Simplify right side
    16,902.78x = 220,446,815.11
  5. Step 5: Solve for x
    x = 220,446,815.11/16,902.78
  6. Step 6: Final answer
    x = 13,042.04

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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.