Home / 13,816.92-20,722.38-3,953.55

Finding the Fourth Proportional to 13,816.92, 20,722.38 and 3,953.55

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Solution

The fourth proportional to 13,816.92, 20,722.38 and 3,953.55 is: 5,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.92 : 20,722.38 = 3,953.55 : x
  2. Step 2: Convert to fraction form
    13,816.92/20,722.38 = 3,953.55/x
  3. Step 3: Cross multiply
    13,816.92x = 20,722.38 × 3,953.55
  4. Step 4: Simplify right side
    13,816.92x = 81,926,965.45
  5. Step 5: Solve for x
    x = 81,926,965.45/13,816.92
  6. Step 6: Final answer
    x = 5,929.47

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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.