Home / 13,813.38-20,719.62-3,952.65

Finding the Fourth Proportional to 13,813.38, 20,719.62 and 3,952.65

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Solution

The fourth proportional to 13,813.38, 20,719.62 and 3,952.65 is: 5,928.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813.38 : 20,719.62 = 3,952.65 : x
  2. Step 2: Convert to fraction form
    13,813.38/20,719.62 = 3,952.65/x
  3. Step 3: Cross multiply
    13,813.38x = 20,719.62 × 3,952.65
  4. Step 4: Simplify right side
    13,813.38x = 81,897,405.99
  5. Step 5: Solve for x
    x = 81,897,405.99/13,813.38
  6. Step 6: Final answer
    x = 5,928.85

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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.