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Finding the Fourth Proportional to 18,201.92, 27,302.90 and 10,405.26

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Solution

The fourth proportional to 18,201.92, 27,302.90 and 10,405.26 is: 15,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.92 : 27,302.90 = 10,405.26 : x
  2. Step 2: Convert to fraction form
    18,201.92/27,302.90 = 10,405.26/x
  3. Step 3: Cross multiply
    18,201.92x = 27,302.90 × 10,405.26
  4. Step 4: Simplify right side
    18,201.92x = 284,093,721.23
  5. Step 5: Solve for x
    x = 284,093,721.23/18,201.92
  6. Step 6: Final answer
    x = 15,607.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.