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Finding the Fourth Proportional to 17,989.92, 26,994.06 and 12,134.25

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Solution

The fourth proportional to 17,989.92, 26,994.06 and 12,134.25 is: 18,207.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.92 : 26,994.06 = 12,134.25 : x
  2. Step 2: Convert to fraction form
    17,989.92/26,994.06 = 12,134.25/x
  3. Step 3: Cross multiply
    17,989.92x = 26,994.06 × 12,134.25
  4. Step 4: Simplify right side
    17,989.92x = 327,552,672.56
  5. Step 5: Solve for x
    x = 327,552,672.56/17,989.92
  6. Step 6: Final answer
    x = 18,207.57

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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.