Home / 13,988.50-20,982.84-3,600.34

Finding the Fourth Proportional to 13,988.50, 20,982.84 and 3,600.34

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Solution

The fourth proportional to 13,988.50, 20,982.84 and 3,600.34 is: 5,400.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.50 : 20,982.84 = 3,600.34 : x
  2. Step 2: Convert to fraction form
    13,988.50/20,982.84 = 3,600.34/x
  3. Step 3: Cross multiply
    13,988.50x = 20,982.84 × 3,600.34
  4. Step 4: Simplify right side
    13,988.50x = 75,545,358.17
  5. Step 5: Solve for x
    x = 75,545,358.17/13,988.50
  6. Step 6: Final answer
    x = 5,400.53

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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.