Home / 18,119.12-27,173.46-4,971.92

Finding the Fourth Proportional to 18,119.12, 27,173.46 and 4,971.92

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Solution

The fourth proportional to 18,119.12, 27,173.46 and 4,971.92 is: 7,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.12 : 27,173.46 = 4,971.92 : x
  2. Step 2: Convert to fraction form
    18,119.12/27,173.46 = 4,971.92/x
  3. Step 3: Cross multiply
    18,119.12x = 27,173.46 × 4,971.92
  4. Step 4: Simplify right side
    18,119.12x = 135,104,269.24
  5. Step 5: Solve for x
    x = 135,104,269.24/18,119.12
  6. Step 6: Final answer
    x = 7,456.45

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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.