Home / 13,200.90-18,217.74-7,233.09

Finding the Fourth Proportional to 13,200.90, 18,217.74 and 7,233.09

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Solution

The fourth proportional to 13,200.90, 18,217.74 and 7,233.09 is: 9,981.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.90 : 18,217.74 = 7,233.09 : x
  2. Step 2: Convert to fraction form
    13,200.90/18,217.74 = 7,233.09/x
  3. Step 3: Cross multiply
    13,200.90x = 18,217.74 × 7,233.09
  4. Step 4: Simplify right side
    13,200.90x = 131,770,553.02
  5. Step 5: Solve for x
    x = 131,770,553.02/13,200.90
  6. Step 6: Final answer
    x = 9,981.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.