Home / 13,830.49-20,730.66-6,796.54

Finding the Fourth Proportional to 13,830.49, 20,730.66 and 6,796.54

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Solution

The fourth proportional to 13,830.49, 20,730.66 and 6,796.54 is: 10,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.49 : 20,730.66 = 6,796.54 : x
  2. Step 2: Convert to fraction form
    13,830.49/20,730.66 = 6,796.54/x
  3. Step 3: Cross multiply
    13,830.49x = 20,730.66 × 6,796.54
  4. Step 4: Simplify right side
    13,830.49x = 140,896,759.92
  5. Step 5: Solve for x
    x = 140,896,759.92/13,830.49
  6. Step 6: Final answer
    x = 10,187.40

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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.