Home / 12,209.00-18,313.52-4,415.99

Finding the Fourth Proportional to 12,209.00, 18,313.52 and 4,415.99

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Solution

The fourth proportional to 12,209.00, 18,313.52 and 4,415.99 is: 6,623.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.00 : 18,313.52 = 4,415.99 : x
  2. Step 2: Convert to fraction form
    12,209.00/18,313.52 = 4,415.99/x
  3. Step 3: Cross multiply
    12,209.00x = 18,313.52 × 4,415.99
  4. Step 4: Simplify right side
    12,209.00x = 80,872,207.54
  5. Step 5: Solve for x
    x = 80,872,207.54/12,209.00
  6. Step 6: Final answer
    x = 6,623.99

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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.