Home / 13,867.38-20,800.94-3,479.13

Finding the Fourth Proportional to 13,867.38, 20,800.94 and 3,479.13

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Solution

The fourth proportional to 13,867.38, 20,800.94 and 3,479.13 is: 5,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.38 : 20,800.94 = 3,479.13 : x
  2. Step 2: Convert to fraction form
    13,867.38/20,800.94 = 3,479.13/x
  3. Step 3: Cross multiply
    13,867.38x = 20,800.94 × 3,479.13
  4. Step 4: Simplify right side
    13,867.38x = 72,369,156.99
  5. Step 5: Solve for x
    x = 72,369,156.99/13,867.38
  6. Step 6: Final answer
    x = 5,218.66

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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.