Home / 13,479.27-20,218.29-5,163.20

Finding the Fourth Proportional to 13,479.27, 20,218.29 and 5,163.20

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Solution

The fourth proportional to 13,479.27, 20,218.29 and 5,163.20 is: 7,744.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.27 : 20,218.29 = 5,163.20 : x
  2. Step 2: Convert to fraction form
    13,479.27/20,218.29 = 5,163.20/x
  3. Step 3: Cross multiply
    13,479.27x = 20,218.29 × 5,163.20
  4. Step 4: Simplify right side
    13,479.27x = 104,391,074.93
  5. Step 5: Solve for x
    x = 104,391,074.93/13,479.27
  6. Step 6: Final answer
    x = 7,744.57

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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.