Home / 13,998.20-20,997.30-9,332.60

Finding the Fourth Proportional to 13,998.20, 20,997.30 and 9,332.60

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Solution

The fourth proportional to 13,998.20, 20,997.30 and 9,332.60 is: 13,998.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.20 : 20,997.30 = 9,332.60 : x
  2. Step 2: Convert to fraction form
    13,998.20/20,997.30 = 9,332.60/x
  3. Step 3: Cross multiply
    13,998.20x = 20,997.30 × 9,332.60
  4. Step 4: Simplify right side
    13,998.20x = 195,959,401.98
  5. Step 5: Solve for x
    x = 195,959,401.98/13,998.20
  6. Step 6: Final answer
    x = 13,998.90

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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.