Home / 18,313.35-27,470.16-12,112.53

Finding the Fourth Proportional to 18,313.35, 27,470.16 and 12,112.53

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Solution

The fourth proportional to 18,313.35, 27,470.16 and 12,112.53 is: 18,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.35 : 27,470.16 = 12,112.53 : x
  2. Step 2: Convert to fraction form
    18,313.35/27,470.16 = 12,112.53/x
  3. Step 3: Cross multiply
    18,313.35x = 27,470.16 × 12,112.53
  4. Step 4: Simplify right side
    18,313.35x = 332,733,137.10
  5. Step 5: Solve for x
    x = 332,733,137.10/18,313.35
  6. Step 6: Final answer
    x = 18,168.88

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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.