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Finding the Fourth Proportional to 18,004.27, 27,009.11 and 6,315.43

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Solution

The fourth proportional to 18,004.27, 27,009.11 and 6,315.43 is: 9,474.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.27 : 27,009.11 = 6,315.43 : x
  2. Step 2: Convert to fraction form
    18,004.27/27,009.11 = 6,315.43/x
  3. Step 3: Cross multiply
    18,004.27x = 27,009.11 × 6,315.43
  4. Step 4: Simplify right side
    18,004.27x = 170,574,111.99
  5. Step 5: Solve for x
    x = 170,574,111.99/18,004.27
  6. Step 6: Final answer
    x = 9,474.09

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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.