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Finding the Fourth Proportional to 12,153.66, 16,771.86 and 6,849.42

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Solution

The fourth proportional to 12,153.66, 16,771.86 and 6,849.42 is: 9,452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.66 : 16,771.86 = 6,849.42 : x
  2. Step 2: Convert to fraction form
    12,153.66/16,771.86 = 6,849.42/x
  3. Step 3: Cross multiply
    12,153.66x = 16,771.86 × 6,849.42
  4. Step 4: Simplify right side
    12,153.66x = 114,877,513.32
  5. Step 5: Solve for x
    x = 114,877,513.32/12,153.66
  6. Step 6: Final answer
    x = 9,452.09

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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.