Home / 12,223.12-18,334.53-3,903.03

Finding the Fourth Proportional to 12,223.12, 18,334.53 and 3,903.03

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Solution

The fourth proportional to 12,223.12, 18,334.53 and 3,903.03 is: 5,854.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.12 : 18,334.53 = 3,903.03 : x
  2. Step 2: Convert to fraction form
    12,223.12/18,334.53 = 3,903.03/x
  3. Step 3: Cross multiply
    12,223.12x = 18,334.53 × 3,903.03
  4. Step 4: Simplify right side
    12,223.12x = 71,560,201.11
  5. Step 5: Solve for x
    x = 71,560,201.11/12,223.12
  6. Step 6: Final answer
    x = 5,854.50

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Half scale
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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.