Home / 13,811.38-20,717.03-3,950.64

Finding the Fourth Proportional to 13,811.38, 20,717.03 and 3,950.64

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Solution

The fourth proportional to 13,811.38, 20,717.03 and 3,950.64 is: 5,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.38 : 20,717.03 = 3,950.64 : x
  2. Step 2: Convert to fraction form
    13,811.38/20,717.03 = 3,950.64/x
  3. Step 3: Cross multiply
    13,811.38x = 20,717.03 × 3,950.64
  4. Step 4: Simplify right side
    13,811.38x = 81,845,537.28
  5. Step 5: Solve for x
    x = 81,845,537.28/13,811.38
  6. Step 6: Final answer
    x = 5,925.95

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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.