Home / 12,605.52-18,902.79-3,838.38

Finding the Fourth Proportional to 12,605.52, 18,902.79 and 3,838.38

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Solution

The fourth proportional to 12,605.52, 18,902.79 and 3,838.38 is: 5,755.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.52 : 18,902.79 = 3,838.38 : x
  2. Step 2: Convert to fraction form
    12,605.52/18,902.79 = 3,838.38/x
  3. Step 3: Cross multiply
    12,605.52x = 18,902.79 × 3,838.38
  4. Step 4: Simplify right side
    12,605.52x = 72,556,091.08
  5. Step 5: Solve for x
    x = 72,556,091.08/12,605.52
  6. Step 6: Final answer
    x = 5,755.90

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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.