Home / 12,119.99-18,177.96-3,355.79

Finding the Fourth Proportional to 12,119.99, 18,177.96 and 3,355.79

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Solution

The fourth proportional to 12,119.99, 18,177.96 and 3,355.79 is: 5,033.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.99 : 18,177.96 = 3,355.79 : x
  2. Step 2: Convert to fraction form
    12,119.99/18,177.96 = 3,355.79/x
  3. Step 3: Cross multiply
    12,119.99x = 18,177.96 × 3,355.79
  4. Step 4: Simplify right side
    12,119.99x = 61,001,416.39
  5. Step 5: Solve for x
    x = 61,001,416.39/12,119.99
  6. Step 6: Final answer
    x = 5,033.12

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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.