Home / 12,086.21-18,107.88-10,313.22

Finding the Fourth Proportional to 12,086.21, 18,107.88 and 10,313.22

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Solution

The fourth proportional to 12,086.21, 18,107.88 and 10,313.22 is: 15,451.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.21 : 18,107.88 = 10,313.22 : x
  2. Step 2: Convert to fraction form
    12,086.21/18,107.88 = 10,313.22/x
  3. Step 3: Cross multiply
    12,086.21x = 18,107.88 × 10,313.22
  4. Step 4: Simplify right side
    12,086.21x = 186,750,608.41
  5. Step 5: Solve for x
    x = 186,750,608.41/12,086.21
  6. Step 6: Final answer
    x = 15,451.54

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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.