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Finding the Fourth Proportional to 12,014.13, 18,008.44 and 7,086.09

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Solution

The fourth proportional to 12,014.13, 18,008.44 and 7,086.09 is: 10,621.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,014.13 : 18,008.44 = 7,086.09 : x
  2. Step 2: Convert to fraction form
    12,014.13/18,008.44 = 7,086.09/x
  3. Step 3: Cross multiply
    12,014.13x = 18,008.44 × 7,086.09
  4. Step 4: Simplify right side
    12,014.13x = 127,609,408.88
  5. Step 5: Solve for x
    x = 127,609,408.88/12,014.13
  6. Step 6: Final answer
    x = 10,621.61

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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.