Home / 13,344.50-20,015.93-3,984.54

Finding the Fourth Proportional to 13,344.50, 20,015.93 and 3,984.54

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Solution

The fourth proportional to 13,344.50, 20,015.93 and 3,984.54 is: 5,976.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.50 : 20,015.93 = 3,984.54 : x
  2. Step 2: Convert to fraction form
    13,344.50/20,015.93 = 3,984.54/x
  3. Step 3: Cross multiply
    13,344.50x = 20,015.93 × 3,984.54
  4. Step 4: Simplify right side
    13,344.50x = 79,754,253.80
  5. Step 5: Solve for x
    x = 79,754,253.80/13,344.50
  6. Step 6: Final answer
    x = 5,976.57

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1.5x scale

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.