Home / 18,086.78-27,131.10-6,240.50

Finding the Fourth Proportional to 18,086.78, 27,131.10 and 6,240.50

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Solution

The fourth proportional to 18,086.78, 27,131.10 and 6,240.50 is: 9,361.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.78 : 27,131.10 = 6,240.50 : x
  2. Step 2: Convert to fraction form
    18,086.78/27,131.10 = 6,240.50/x
  3. Step 3: Cross multiply
    18,086.78x = 27,131.10 × 6,240.50
  4. Step 4: Simplify right side
    18,086.78x = 169,311,629.55
  5. Step 5: Solve for x
    x = 169,311,629.55/18,086.78
  6. Step 6: Final answer
    x = 9,361.07

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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.