Home / 12,112.16-18,169.92-11,895.08

Finding the Fourth Proportional to 12,112.16, 18,169.92 and 11,895.08

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Solution

The fourth proportional to 12,112.16, 18,169.92 and 11,895.08 is: 17,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.16 : 18,169.92 = 11,895.08 : x
  2. Step 2: Convert to fraction form
    12,112.16/18,169.92 = 11,895.08/x
  3. Step 3: Cross multiply
    12,112.16x = 18,169.92 × 11,895.08
  4. Step 4: Simplify right side
    12,112.16x = 216,132,651.99
  5. Step 5: Solve for x
    x = 216,132,651.99/12,112.16
  6. Step 6: Final answer
    x = 17,844.27

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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.