Home / 12,578.92-18,850.50-9,265.96

Finding the Fourth Proportional to 12,578.92, 18,850.50 and 9,265.96

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Solution

The fourth proportional to 12,578.92, 18,850.50 and 9,265.96 is: 13,885.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578.92 : 18,850.50 = 9,265.96 : x
  2. Step 2: Convert to fraction form
    12,578.92/18,850.50 = 9,265.96/x
  3. Step 3: Cross multiply
    12,578.92x = 18,850.50 × 9,265.96
  4. Step 4: Simplify right side
    12,578.92x = 174,667,978.98
  5. Step 5: Solve for x
    x = 174,667,978.98/12,578.92
  6. Step 6: Final answer
    x = 13,885.77

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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.