Home / 12,171.48-18,221.62-11,004.18

Finding the Fourth Proportional to 12,171.48, 18,221.62 and 11,004.18

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Solution

The fourth proportional to 12,171.48, 18,221.62 and 11,004.18 is: 16,474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171.48 : 18,221.62 = 11,004.18 : x
  2. Step 2: Convert to fraction form
    12,171.48/18,221.62 = 11,004.18/x
  3. Step 3: Cross multiply
    12,171.48x = 18,221.62 × 11,004.18
  4. Step 4: Simplify right side
    12,171.48x = 200,513,986.37
  5. Step 5: Solve for x
    x = 200,513,986.37/12,171.48
  6. Step 6: Final answer
    x = 16,474.08

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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.