Home / 13,661.71-20,493.38-4,302.02

Finding the Fourth Proportional to 13,661.71, 20,493.38 and 4,302.02

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Solution

The fourth proportional to 13,661.71, 20,493.38 and 4,302.02 is: 6,453.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661.71 : 20,493.38 = 4,302.02 : x
  2. Step 2: Convert to fraction form
    13,661.71/20,493.38 = 4,302.02/x
  3. Step 3: Cross multiply
    13,661.71x = 20,493.38 × 4,302.02
  4. Step 4: Simplify right side
    13,661.71x = 88,162,960.35
  5. Step 5: Solve for x
    x = 88,162,960.35/13,661.71
  6. Step 6: Final answer
    x = 6,453.29

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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.