Home / 11,639.73-16,034.60-8,650.38

Finding the Fourth Proportional to 11,639.73, 16,034.60 and 8,650.38

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Solution

The fourth proportional to 11,639.73, 16,034.60 and 8,650.38 is: 11,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.73 : 16,034.60 = 8,650.38 : x
  2. Step 2: Convert to fraction form
    11,639.73/16,034.60 = 8,650.38/x
  3. Step 3: Cross multiply
    11,639.73x = 16,034.60 × 8,650.38
  4. Step 4: Simplify right side
    11,639.73x = 138,705,404.77
  5. Step 5: Solve for x
    x = 138,705,404.77/11,639.73
  6. Step 6: Final answer
    x = 11,916.55

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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.