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Finding the Fourth Proportional to 18,004.53, 27,009.84 and 8,012.88

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Solution

The fourth proportional to 18,004.53, 27,009.84 and 8,012.88 is: 12,020.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,004.53 : 27,009.84 = 8,012.88 : x
  2. Step 2: Convert to fraction form
    18,004.53/27,009.84 = 8,012.88/x
  3. Step 3: Cross multiply
    18,004.53x = 27,009.84 × 8,012.88
  4. Step 4: Simplify right side
    18,004.53x = 216,426,606.74
  5. Step 5: Solve for x
    x = 216,426,606.74/18,004.53
  6. Step 6: Final answer
    x = 12,020.68

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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.