Home / 18,553.90-27,830.94-5,406.34

Finding the Fourth Proportional to 18,553.90, 27,830.94 and 5,406.34

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Solution

The fourth proportional to 18,553.90, 27,830.94 and 5,406.34 is: 8,109.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.90 : 27,830.94 = 5,406.34 : x
  2. Step 2: Convert to fraction form
    18,553.90/27,830.94 = 5,406.34/x
  3. Step 3: Cross multiply
    18,553.90x = 27,830.94 × 5,406.34
  4. Step 4: Simplify right side
    18,553.90x = 150,463,524.16
  5. Step 5: Solve for x
    x = 150,463,524.16/18,553.90
  6. Step 6: Final answer
    x = 8,109.54

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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.