Home / 13,359.28-20,011.19-6,771.60

Finding the Fourth Proportional to 13,359.28, 20,011.19 and 6,771.60

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Solution

The fourth proportional to 13,359.28, 20,011.19 and 6,771.60 is: 10,143.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.28 : 20,011.19 = 6,771.60 : x
  2. Step 2: Convert to fraction form
    13,359.28/20,011.19 = 6,771.60/x
  3. Step 3: Cross multiply
    13,359.28x = 20,011.19 × 6,771.60
  4. Step 4: Simplify right side
    13,359.28x = 135,507,674.15
  5. Step 5: Solve for x
    x = 135,507,674.15/13,359.28
  6. Step 6: Final answer
    x = 10,143.34

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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.