Home / 8,629.80-12,954.30-5,346.60

Finding the Fourth Proportional to 8,629.80, 12,954.30 and 5,346.60

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Solution

The fourth proportional to 8,629.80, 12,954.30 and 5,346.60 is: 8,025.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.80 : 12,954.30 = 5,346.60 : x
  2. Step 2: Convert to fraction form
    8,629.80/12,954.30 = 5,346.60/x
  3. Step 3: Cross multiply
    8,629.80x = 12,954.30 × 5,346.60
  4. Step 4: Simplify right side
    8,629.80x = 69,261,460.38
  5. Step 5: Solve for x
    x = 69,261,460.38/8,629.80
  6. Step 6: Final answer
    x = 8,025.85

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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.