Home / 11,618.38-17,431.52-4,223.43

Finding the Fourth Proportional to 11,618.38, 17,431.52 and 4,223.43

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Solution

The fourth proportional to 11,618.38, 17,431.52 and 4,223.43 is: 6,336.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.38 : 17,431.52 = 4,223.43 : x
  2. Step 2: Convert to fraction form
    11,618.38/17,431.52 = 4,223.43/x
  3. Step 3: Cross multiply
    11,618.38x = 17,431.52 × 4,223.43
  4. Step 4: Simplify right side
    11,618.38x = 73,620,783.40
  5. Step 5: Solve for x
    x = 73,620,783.40/11,618.38
  6. Step 6: Final answer
    x = 6,336.58

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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.