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Finding the Fourth Proportional to 18,133.99, 27,201.28 and 6,288.14

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Solution

The fourth proportional to 18,133.99, 27,201.28 and 6,288.14 is: 9,432.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,133.99 : 27,201.28 = 6,288.14 : x
  2. Step 2: Convert to fraction form
    18,133.99/27,201.28 = 6,288.14/x
  3. Step 3: Cross multiply
    18,133.99x = 27,201.28 × 6,288.14
  4. Step 4: Simplify right side
    18,133.99x = 171,045,405.80
  5. Step 5: Solve for x
    x = 171,045,405.80/18,133.99
  6. Step 6: Final answer
    x = 9,432.31

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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.