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Finding the Fourth Proportional to 18,000.99, 27,007.29 and 7,476.12

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Solution

The fourth proportional to 18,000.99, 27,007.29 and 7,476.12 is: 11,216.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.99 : 27,007.29 = 7,476.12 : x
  2. Step 2: Convert to fraction form
    18,000.99/27,007.29 = 7,476.12/x
  3. Step 3: Cross multiply
    18,000.99x = 27,007.29 × 7,476.12
  4. Step 4: Simplify right side
    18,000.99x = 201,909,740.91
  5. Step 5: Solve for x
    x = 201,909,740.91/18,000.99
  6. Step 6: Final answer
    x = 11,216.59

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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.