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Finding the Fourth Proportional to 18,958.76, 26,157.84 and 12,244.68

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Solution

The fourth proportional to 18,958.76, 26,157.84 and 12,244.68 is: 16,894.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.76 : 26,157.84 = 12,244.68 : x
  2. Step 2: Convert to fraction form
    18,958.76/26,157.84 = 12,244.68/x
  3. Step 3: Cross multiply
    18,958.76x = 26,157.84 × 12,244.68
  4. Step 4: Simplify right side
    18,958.76x = 320,294,380.29
  5. Step 5: Solve for x
    x = 320,294,380.29/18,958.76
  6. Step 6: Final answer
    x = 16,894.27

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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.