Home / 18,112.20-27,133.12-10,190.56

Finding the Fourth Proportional to 18,112.20, 27,133.12 and 10,190.56

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Solution

The fourth proportional to 18,112.20, 27,133.12 and 10,190.56 is: 15,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.20 : 27,133.12 = 10,190.56 : x
  2. Step 2: Convert to fraction form
    18,112.20/27,133.12 = 10,190.56/x
  3. Step 3: Cross multiply
    18,112.20x = 27,133.12 × 10,190.56
  4. Step 4: Simplify right side
    18,112.20x = 276,501,643.72
  5. Step 5: Solve for x
    x = 276,501,643.72/18,112.20
  6. Step 6: Final answer
    x = 15,266.05

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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.