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Finding the Fourth Proportional to 43,998.73, 65,998.02 and 12,408.73

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Solution

The fourth proportional to 43,998.73, 65,998.02 and 12,408.73 is: 18,613.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,998.73 : 65,998.02 = 12,408.73 : x
  2. Step 2: Convert to fraction form
    43,998.73/65,998.02 = 12,408.73/x
  3. Step 3: Cross multiply
    43,998.73x = 65,998.02 × 12,408.73
  4. Step 4: Simplify right side
    43,998.73x = 818,951,610.71
  5. Step 5: Solve for x
    x = 818,951,610.71/43,998.73
  6. Step 6: Final answer
    x = 18,613.07

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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.