Home / 13,533.57-20,286.46-6,857.73

Finding the Fourth Proportional to 13,533.57, 20,286.46 and 6,857.73

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Solution

The fourth proportional to 13,533.57, 20,286.46 and 6,857.73 is: 10,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.57 : 20,286.46 = 6,857.73 : x
  2. Step 2: Convert to fraction form
    13,533.57/20,286.46 = 6,857.73/x
  3. Step 3: Cross multiply
    13,533.57x = 20,286.46 × 6,857.73
  4. Step 4: Simplify right side
    13,533.57x = 139,119,065.34
  5. Step 5: Solve for x
    x = 139,119,065.34/13,533.57
  6. Step 6: Final answer
    x = 10,279.55

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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.