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Finding the Fourth Proportional to 13,602.96, 18,754.04 and 8,879.04

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Solution

The fourth proportional to 13,602.96, 18,754.04 and 8,879.04 is: 12,241.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.96 : 18,754.04 = 8,879.04 : x
  2. Step 2: Convert to fraction form
    13,602.96/18,754.04 = 8,879.04/x
  3. Step 3: Cross multiply
    13,602.96x = 18,754.04 × 8,879.04
  4. Step 4: Simplify right side
    13,602.96x = 166,517,871.32
  5. Step 5: Solve for x
    x = 166,517,871.32/13,602.96
  6. Step 6: Final answer
    x = 12,241.30

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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.