Home / 11,297.73-16,898.16-8,142.30

Finding the Fourth Proportional to 11,297.73, 16,898.16 and 8,142.30

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Solution

The fourth proportional to 11,297.73, 16,898.16 and 8,142.30 is: 12,178.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,297.73 : 16,898.16 = 8,142.30 : x
  2. Step 2: Convert to fraction form
    11,297.73/16,898.16 = 8,142.30/x
  3. Step 3: Cross multiply
    11,297.73x = 16,898.16 × 8,142.30
  4. Step 4: Simplify right side
    11,297.73x = 137,589,972.38
  5. Step 5: Solve for x
    x = 137,589,972.38/11,297.73
  6. Step 6: Final answer
    x = 12,178.55

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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.