Home / 13,715.41-20,578.24-5,401.22

Finding the Fourth Proportional to 13,715.41, 20,578.24 and 5,401.22

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Solution

The fourth proportional to 13,715.41, 20,578.24 and 5,401.22 is: 8,103.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.41 : 20,578.24 = 5,401.22 : x
  2. Step 2: Convert to fraction form
    13,715.41/20,578.24 = 5,401.22/x
  3. Step 3: Cross multiply
    13,715.41x = 20,578.24 × 5,401.22
  4. Step 4: Simplify right side
    13,715.41x = 111,147,600.81
  5. Step 5: Solve for x
    x = 111,147,600.81/13,715.41
  6. Step 6: Final answer
    x = 8,103.85

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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.