Home / 18,182.13-25,091.74-11,112.45

Finding the Fourth Proportional to 18,182.13, 25,091.74 and 11,112.45

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Solution

The fourth proportional to 18,182.13, 25,091.74 and 11,112.45 is: 15,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,182.13 : 25,091.74 = 11,112.45 : x
  2. Step 2: Convert to fraction form
    18,182.13/25,091.74 = 11,112.45/x
  3. Step 3: Cross multiply
    18,182.13x = 25,091.74 × 11,112.45
  4. Step 4: Simplify right side
    18,182.13x = 278,830,706.16
  5. Step 5: Solve for x
    x = 278,830,706.16/18,182.13
  6. Step 6: Final answer
    x = 15,335.43

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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.