Home / 13,814.87-20,722.27-3,426.62

Finding the Fourth Proportional to 13,814.87, 20,722.27 and 3,426.62

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Solution

The fourth proportional to 13,814.87, 20,722.27 and 3,426.62 is: 5,139.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,814.87 : 20,722.27 = 3,426.62 : x
  2. Step 2: Convert to fraction form
    13,814.87/20,722.27 = 3,426.62/x
  3. Step 3: Cross multiply
    13,814.87x = 20,722.27 × 3,426.62
  4. Step 4: Simplify right side
    13,814.87x = 71,007,344.83
  5. Step 5: Solve for x
    x = 71,007,344.83/13,814.87
  6. Step 6: Final answer
    x = 5,139.92

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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.