Home / 18,381.27-25,365.99-9,997.77

Finding the Fourth Proportional to 18,381.27, 25,365.99 and 9,997.77

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Solution

The fourth proportional to 18,381.27, 25,365.99 and 9,997.77 is: 13,796.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.27 : 25,365.99 = 9,997.77 : x
  2. Step 2: Convert to fraction form
    18,381.27/25,365.99 = 9,997.77/x
  3. Step 3: Cross multiply
    18,381.27x = 25,365.99 × 9,997.77
  4. Step 4: Simplify right side
    18,381.27x = 253,603,333.84
  5. Step 5: Solve for x
    x = 253,603,333.84/18,381.27
  6. Step 6: Final answer
    x = 13,796.83

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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.