Home / 18,553.98-25,605.54-11,004.78

Finding the Fourth Proportional to 18,553.98, 25,605.54 and 11,004.78

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Solution

The fourth proportional to 18,553.98, 25,605.54 and 11,004.78 is: 15,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.98 : 25,605.54 = 11,004.78 : x
  2. Step 2: Convert to fraction form
    18,553.98/25,605.54 = 11,004.78/x
  3. Step 3: Cross multiply
    18,553.98x = 25,605.54 × 11,004.78
  4. Step 4: Simplify right side
    18,553.98x = 281,783,334.48
  5. Step 5: Solve for x
    x = 281,783,334.48/18,553.98
  6. Step 6: Final answer
    x = 15,187.22

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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.