Home / 13,811.43-20,713.71-3,950.82

Finding the Fourth Proportional to 13,811.43, 20,713.71 and 3,950.82

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Solution

The fourth proportional to 13,811.43, 20,713.71 and 3,950.82 is: 5,925.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.43 : 20,713.71 = 3,950.82 : x
  2. Step 2: Convert to fraction form
    13,811.43/20,713.71 = 3,950.82/x
  3. Step 3: Cross multiply
    13,811.43x = 20,713.71 × 3,950.82
  4. Step 4: Simplify right side
    13,811.43x = 81,836,139.74
  5. Step 5: Solve for x
    x = 81,836,139.74/13,811.43
  6. Step 6: Final answer
    x = 5,925.25

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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.