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Finding the Fourth Proportional to 12,132.76, 16,741.92 and 6,827.49

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Solution

The fourth proportional to 12,132.76, 16,741.92 and 6,827.49 is: 9,421.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.76 : 16,741.92 = 6,827.49 : x
  2. Step 2: Convert to fraction form
    12,132.76/16,741.92 = 6,827.49/x
  3. Step 3: Cross multiply
    12,132.76x = 16,741.92 × 6,827.49
  4. Step 4: Simplify right side
    12,132.76x = 114,305,291.38
  5. Step 5: Solve for x
    x = 114,305,291.38/12,132.76
  6. Step 6: Final answer
    x = 9,421.21

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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.