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Finding the Fourth Proportional to 18,009.83, 27,018.22 and 5,527.64

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Solution

The fourth proportional to 18,009.83, 27,018.22 and 5,527.64 is: 8,292.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.83 : 27,018.22 = 5,527.64 : x
  2. Step 2: Convert to fraction form
    18,009.83/27,018.22 = 5,527.64/x
  3. Step 3: Cross multiply
    18,009.83x = 27,018.22 × 5,527.64
  4. Step 4: Simplify right side
    18,009.83x = 149,347,065.46
  5. Step 5: Solve for x
    x = 149,347,065.46/18,009.83
  6. Step 6: Final answer
    x = 8,292.53

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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.