Home / 18,187.92-25,101.22-11,119.06

Finding the Fourth Proportional to 18,187.92, 25,101.22 and 11,119.06

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Solution

The fourth proportional to 18,187.92, 25,101.22 and 11,119.06 is: 15,345.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.92 : 25,101.22 = 11,119.06 : x
  2. Step 2: Convert to fraction form
    18,187.92/25,101.22 = 11,119.06/x
  3. Step 3: Cross multiply
    18,187.92x = 25,101.22 × 11,119.06
  4. Step 4: Simplify right side
    18,187.92x = 279,101,971.25
  5. Step 5: Solve for x
    x = 279,101,971.25/18,187.92
  6. Step 6: Final answer
    x = 15,345.46

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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.