Home / 18,127.50-27,191.25-6,441.18

Finding the Fourth Proportional to 18,127.50, 27,191.25 and 6,441.18

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Solution

The fourth proportional to 18,127.50, 27,191.25 and 6,441.18 is: 9,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.50 : 27,191.25 = 6,441.18 : x
  2. Step 2: Convert to fraction form
    18,127.50/27,191.25 = 6,441.18/x
  3. Step 3: Cross multiply
    18,127.50x = 27,191.25 × 6,441.18
  4. Step 4: Simplify right side
    18,127.50x = 175,143,735.68
  5. Step 5: Solve for x
    x = 175,143,735.68/18,127.50
  6. Step 6: Final answer
    x = 9,661.77

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Double scale
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Similar ratio
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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.