Home / 12,429.64-18,645.37-3,664.93

Finding the Fourth Proportional to 12,429.64, 18,645.37 and 3,664.93

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Solution

The fourth proportional to 12,429.64, 18,645.37 and 3,664.93 is: 5,497.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,429.64 : 18,645.37 = 3,664.93 : x
  2. Step 2: Convert to fraction form
    12,429.64/18,645.37 = 3,664.93/x
  3. Step 3: Cross multiply
    12,429.64x = 18,645.37 × 3,664.93
  4. Step 4: Simplify right side
    12,429.64x = 68,333,975.87
  5. Step 5: Solve for x
    x = 68,333,975.87/12,429.64
  6. Step 6: Final answer
    x = 5,497.66

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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.