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Finding the Fourth Proportional to 12,000.99, 18,001.44 and 3,236.79

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Solution

The fourth proportional to 12,000.99, 18,001.44 and 3,236.79 is: 4,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.99 : 18,001.44 = 3,236.79 : x
  2. Step 2: Convert to fraction form
    12,000.99/18,001.44 = 3,236.79/x
  3. Step 3: Cross multiply
    12,000.99x = 18,001.44 × 3,236.79
  4. Step 4: Simplify right side
    12,000.99x = 58,266,880.98
  5. Step 5: Solve for x
    x = 58,266,880.98/12,000.99
  6. Step 6: Final answer
    x = 4,855.17

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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.