Home / 18,180.06-25,091.04-15,191.16

Finding the Fourth Proportional to 18,180.06, 25,091.04 and 15,191.16

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Solution

The fourth proportional to 18,180.06, 25,091.04 and 15,191.16 is: 20,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.06 : 25,091.04 = 15,191.16 : x
  2. Step 2: Convert to fraction form
    18,180.06/25,091.04 = 15,191.16/x
  3. Step 3: Cross multiply
    18,180.06x = 25,091.04 × 15,191.16
  4. Step 4: Simplify right side
    18,180.06x = 381,162,003.21
  5. Step 5: Solve for x
    x = 381,162,003.21/18,180.06
  6. Step 6: Final answer
    x = 20,965.94

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Double scale
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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.