Home / 13,729.20-20,595.24-5,938.80

Finding the Fourth Proportional to 13,729.20, 20,595.24 and 5,938.80

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Solution

The fourth proportional to 13,729.20, 20,595.24 and 5,938.80 is: 8,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.20 : 20,595.24 = 5,938.80 : x
  2. Step 2: Convert to fraction form
    13,729.20/20,595.24 = 5,938.80/x
  3. Step 3: Cross multiply
    13,729.20x = 20,595.24 × 5,938.80
  4. Step 4: Simplify right side
    13,729.20x = 122,311,011.31
  5. Step 5: Solve for x
    x = 122,311,011.31/13,729.20
  6. Step 6: Final answer
    x = 8,908.82

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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.