Home / 13,673.28-20,491.20-5,871.36

Finding the Fourth Proportional to 13,673.28, 20,491.20 and 5,871.36

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Solution

The fourth proportional to 13,673.28, 20,491.20 and 5,871.36 is: 8,799.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,673.28 : 20,491.20 = 5,871.36 : x
  2. Step 2: Convert to fraction form
    13,673.28/20,491.20 = 5,871.36/x
  3. Step 3: Cross multiply
    13,673.28x = 20,491.20 × 5,871.36
  4. Step 4: Simplify right side
    13,673.28x = 120,311,212.03
  5. Step 5: Solve for x
    x = 120,311,212.03/13,673.28
  6. Step 6: Final answer
    x = 8,799.00

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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.