Home / 13,251.06-18,282.78-8,773.38

Finding the Fourth Proportional to 13,251.06, 18,282.78 and 8,773.38

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Solution

The fourth proportional to 13,251.06, 18,282.78 and 8,773.38 is: 12,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.06 : 18,282.78 = 8,773.38 : x
  2. Step 2: Convert to fraction form
    13,251.06/18,282.78 = 8,773.38/x
  3. Step 3: Cross multiply
    13,251.06x = 18,282.78 × 8,773.38
  4. Step 4: Simplify right side
    13,251.06x = 160,401,776.40
  5. Step 5: Solve for x
    x = 160,401,776.40/13,251.06
  6. Step 6: Final answer
    x = 12,104.83

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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.