Home / 12,438.24-18,662.40-6,204.48

Finding the Fourth Proportional to 12,438.24, 18,662.40 and 6,204.48

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Solution

The fourth proportional to 12,438.24, 18,662.40 and 6,204.48 is: 9,309.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.24 : 18,662.40 = 6,204.48 : x
  2. Step 2: Convert to fraction form
    12,438.24/18,662.40 = 6,204.48/x
  3. Step 3: Cross multiply
    12,438.24x = 18,662.40 × 6,204.48
  4. Step 4: Simplify right side
    12,438.24x = 115,790,487.55
  5. Step 5: Solve for x
    x = 115,790,487.55/12,438.24
  6. Step 6: Final answer
    x = 9,309.23

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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.