Home / 12,629.64-18,943.20-3,864.64

Finding the Fourth Proportional to 12,629.64, 18,943.20 and 3,864.64

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Solution

The fourth proportional to 12,629.64, 18,943.20 and 3,864.64 is: 5,796.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.64 : 18,943.20 = 3,864.64 : x
  2. Step 2: Convert to fraction form
    12,629.64/18,943.20 = 3,864.64/x
  3. Step 3: Cross multiply
    12,629.64x = 18,943.20 × 3,864.64
  4. Step 4: Simplify right side
    12,629.64x = 73,208,648.45
  5. Step 5: Solve for x
    x = 73,208,648.45/12,629.64
  6. Step 6: Final answer
    x = 5,796.57

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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.