Home / 13,202.85-18,220.00-7,234.50

Finding the Fourth Proportional to 13,202.85, 18,220.00 and 7,234.50

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Solution

The fourth proportional to 13,202.85, 18,220.00 and 7,234.50 is: 9,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,202.85 : 18,220.00 = 7,234.50 : x
  2. Step 2: Convert to fraction form
    13,202.85/18,220.00 = 7,234.50/x
  3. Step 3: Cross multiply
    13,202.85x = 18,220.00 × 7,234.50
  4. Step 4: Simplify right side
    13,202.85x = 131,812,571.91
  5. Step 5: Solve for x
    x = 131,812,571.91/13,202.85
  6. Step 6: Final answer
    x = 9,983.65

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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.