Home / 13,833.36-20,749.50-3,972.60

Finding the Fourth Proportional to 13,833.36, 20,749.50 and 3,972.60

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Solution

The fourth proportional to 13,833.36, 20,749.50 and 3,972.60 is: 5,958.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,833.36 : 20,749.50 = 3,972.60 : x
  2. Step 2: Convert to fraction form
    13,833.36/20,749.50 = 3,972.60/x
  3. Step 3: Cross multiply
    13,833.36x = 20,749.50 × 3,972.60
  4. Step 4: Simplify right side
    13,833.36x = 82,429,463.70
  5. Step 5: Solve for x
    x = 82,429,463.70/13,833.36
  6. Step 6: Final answer
    x = 5,958.74

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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.