Home / 18,832.05-25,977.11-12,115.53

Finding the Fourth Proportional to 18,832.05, 25,977.11 and 12,115.53

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Solution

The fourth proportional to 18,832.05, 25,977.11 and 12,115.53 is: 16,712.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,832.05 : 25,977.11 = 12,115.53 : x
  2. Step 2: Convert to fraction form
    18,832.05/25,977.11 = 12,115.53/x
  3. Step 3: Cross multiply
    18,832.05x = 25,977.11 × 12,115.53
  4. Step 4: Simplify right side
    18,832.05x = 314,726,394.94
  5. Step 5: Solve for x
    x = 314,726,394.94/18,832.05
  6. Step 6: Final answer
    x = 16,712.27

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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.