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Finding the Fourth Proportional to 12,155.73, 16,773.91 and 6,849.55

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Solution

The fourth proportional to 12,155.73, 16,773.91 and 6,849.55 is: 9,451.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,155.73 : 16,773.91 = 6,849.55 : x
  2. Step 2: Convert to fraction form
    12,155.73/16,773.91 = 6,849.55/x
  3. Step 3: Cross multiply
    12,155.73x = 16,773.91 × 6,849.55
  4. Step 4: Simplify right side
    12,155.73x = 114,893,735.24
  5. Step 5: Solve for x
    x = 114,893,735.24/12,155.73
  6. Step 6: Final answer
    x = 9,451.82

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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.