Home / 6,838.38-9,427.82-5,129.62

Finding the Fourth Proportional to 6,838.38, 9,427.82 and 5,129.62

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Solution

The fourth proportional to 6,838.38, 9,427.82 and 5,129.62 is: 7,072.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,838.38 : 9,427.82 = 5,129.62 : x
  2. Step 2: Convert to fraction form
    6,838.38/9,427.82 = 5,129.62/x
  3. Step 3: Cross multiply
    6,838.38x = 9,427.82 × 5,129.62
  4. Step 4: Simplify right side
    6,838.38x = 48,361,146.85
  5. Step 5: Solve for x
    x = 48,361,146.85/6,838.38
  6. Step 6: Final answer
    x = 7,072.02

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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.