Home / 13,502.54-20,251.37-3,639.51

Finding the Fourth Proportional to 13,502.54, 20,251.37 and 3,639.51

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Solution

The fourth proportional to 13,502.54, 20,251.37 and 3,639.51 is: 5,458.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,502.54 : 20,251.37 = 3,639.51 : x
  2. Step 2: Convert to fraction form
    13,502.54/20,251.37 = 3,639.51/x
  3. Step 3: Cross multiply
    13,502.54x = 20,251.37 × 3,639.51
  4. Step 4: Simplify right side
    13,502.54x = 73,705,045.43
  5. Step 5: Solve for x
    x = 73,705,045.43/13,502.54
  6. Step 6: Final answer
    x = 5,458.61

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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.