Home / 13,838.93-20,756.16-3,975.97

Finding the Fourth Proportional to 13,838.93, 20,756.16 and 3,975.97

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Solution

The fourth proportional to 13,838.93, 20,756.16 and 3,975.97 is: 5,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.93 : 20,756.16 = 3,975.97 : x
  2. Step 2: Convert to fraction form
    13,838.93/20,756.16 = 3,975.97/x
  3. Step 3: Cross multiply
    13,838.93x = 20,756.16 × 3,975.97
  4. Step 4: Simplify right side
    13,838.93x = 82,525,869.48
  5. Step 5: Solve for x
    x = 82,525,869.48/13,838.93
  6. Step 6: Final answer
    x = 5,963.31

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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.