Home / 13,819.42-20,729.13-5,049.55

Finding the Fourth Proportional to 13,819.42, 20,729.13 and 5,049.55

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Solution

The fourth proportional to 13,819.42, 20,729.13 and 5,049.55 is: 7,574.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.42 : 20,729.13 = 5,049.55 : x
  2. Step 2: Convert to fraction form
    13,819.42/20,729.13 = 5,049.55/x
  3. Step 3: Cross multiply
    13,819.42x = 20,729.13 × 5,049.55
  4. Step 4: Simplify right side
    13,819.42x = 104,672,726.57
  5. Step 5: Solve for x
    x = 104,672,726.57/13,819.42
  6. Step 6: Final answer
    x = 7,574.32

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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.