Home / 13,203.23-18,220.68-7,234.49

Finding the Fourth Proportional to 13,203.23, 18,220.68 and 7,234.49

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Solution

The fourth proportional to 13,203.23, 18,220.68 and 7,234.49 is: 9,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203.23 : 18,220.68 = 7,234.49 : x
  2. Step 2: Convert to fraction form
    13,203.23/18,220.68 = 7,234.49/x
  3. Step 3: Cross multiply
    13,203.23x = 18,220.68 × 7,234.49
  4. Step 4: Simplify right side
    13,203.23x = 131,817,372.80
  5. Step 5: Solve for x
    x = 131,817,372.80/13,203.23
  6. Step 6: Final answer
    x = 9,983.73

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Double scale
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Similar ratio
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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.