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Finding the Fourth Proportional to 12,154.86, 16,773.68 and 6,849.70

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Solution

The fourth proportional to 12,154.86, 16,773.68 and 6,849.70 is: 9,452.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.86 : 16,773.68 = 6,849.70 : x
  2. Step 2: Convert to fraction form
    12,154.86/16,773.68 = 6,849.70/x
  3. Step 3: Cross multiply
    12,154.86x = 16,773.68 × 6,849.70
  4. Step 4: Simplify right side
    12,154.86x = 114,894,651.09
  5. Step 5: Solve for x
    x = 114,894,651.09/12,154.86
  6. Step 6: Final answer
    x = 9,452.57

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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.