Home / 12,313.28-18,467.90-3,999.24

Finding the Fourth Proportional to 12,313.28, 18,467.90 and 3,999.24

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Solution

The fourth proportional to 12,313.28, 18,467.90 and 3,999.24 is: 5,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.28 : 18,467.90 = 3,999.24 : x
  2. Step 2: Convert to fraction form
    12,313.28/18,467.90 = 3,999.24/x
  3. Step 3: Cross multiply
    12,313.28x = 18,467.90 × 3,999.24
  4. Step 4: Simplify right side
    12,313.28x = 73,857,559.40
  5. Step 5: Solve for x
    x = 73,857,559.40/12,313.28
  6. Step 6: Final answer
    x = 5,998.20

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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.