Home / 12,206.16-18,309.24-3,888.73

Finding the Fourth Proportional to 12,206.16, 18,309.24 and 3,888.73

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Solution

The fourth proportional to 12,206.16, 18,309.24 and 3,888.73 is: 5,833.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.16 : 18,309.24 = 3,888.73 : x
  2. Step 2: Convert to fraction form
    12,206.16/18,309.24 = 3,888.73/x
  3. Step 3: Cross multiply
    12,206.16x = 18,309.24 × 3,888.73
  4. Step 4: Simplify right side
    12,206.16x = 71,199,579.88
  5. Step 5: Solve for x
    x = 71,199,579.88/12,206.16
  6. Step 6: Final answer
    x = 5,833.09

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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.