Home / 11,660.28-16,090.68-6,355.12

Finding the Fourth Proportional to 11,660.28, 16,090.68 and 6,355.12

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Solution

The fourth proportional to 11,660.28, 16,090.68 and 6,355.12 is: 8,769.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,660.28 : 16,090.68 = 6,355.12 : x
  2. Step 2: Convert to fraction form
    11,660.28/16,090.68 = 6,355.12/x
  3. Step 3: Cross multiply
    11,660.28x = 16,090.68 × 6,355.12
  4. Step 4: Simplify right side
    11,660.28x = 102,258,202.28
  5. Step 5: Solve for x
    x = 102,258,202.28/11,660.28
  6. Step 6: Final answer
    x = 8,769.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.