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Finding the Fourth Proportional to 13,674.07, 18,869.92 and 8,008.12

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Solution

The fourth proportional to 13,674.07, 18,869.92 and 8,008.12 is: 11,051.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.07 : 18,869.92 = 8,008.12 : x
  2. Step 2: Convert to fraction form
    13,674.07/18,869.92 = 8,008.12/x
  3. Step 3: Cross multiply
    13,674.07x = 18,869.92 × 8,008.12
  4. Step 4: Simplify right side
    13,674.07x = 151,112,583.75
  5. Step 5: Solve for x
    x = 151,112,583.75/13,674.07
  6. Step 6: Final answer
    x = 11,051.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.