Home / 13,190.44-18,202.02-7,222.12

Finding the Fourth Proportional to 13,190.44, 18,202.02 and 7,222.12

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Solution

The fourth proportional to 13,190.44, 18,202.02 and 7,222.12 is: 9,966.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.44 : 18,202.02 = 7,222.12 : x
  2. Step 2: Convert to fraction form
    13,190.44/18,202.02 = 7,222.12/x
  3. Step 3: Cross multiply
    13,190.44x = 18,202.02 × 7,222.12
  4. Step 4: Simplify right side
    13,190.44x = 131,457,172.68
  5. Step 5: Solve for x
    x = 131,457,172.68/13,190.44
  6. Step 6: Final answer
    x = 9,966.09

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Half scale
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Double scale
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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.