Home / 18,655.57-25,747.91-11,940.85

Finding the Fourth Proportional to 18,655.57, 25,747.91 and 11,940.85

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Solution

The fourth proportional to 18,655.57, 25,747.91 and 11,940.85 is: 16,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.57 : 25,747.91 = 11,940.85 : x
  2. Step 2: Convert to fraction form
    18,655.57/25,747.91 = 11,940.85/x
  3. Step 3: Cross multiply
    18,655.57x = 25,747.91 × 11,940.85
  4. Step 4: Simplify right side
    18,655.57x = 307,451,931.12
  5. Step 5: Solve for x
    x = 307,451,931.12/18,655.57
  6. Step 6: Final answer
    x = 16,480.44

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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.