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Finding the Fourth Proportional to 12,160.64, 18,241.68 and 3,277.28

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Solution

The fourth proportional to 12,160.64, 18,241.68 and 3,277.28 is: 4,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.64 : 18,241.68 = 3,277.28 : x
  2. Step 2: Convert to fraction form
    12,160.64/18,241.68 = 3,277.28/x
  3. Step 3: Cross multiply
    12,160.64x = 18,241.68 × 3,277.28
  4. Step 4: Simplify right side
    12,160.64x = 59,783,093.03
  5. Step 5: Solve for x
    x = 59,783,093.03/12,160.64
  6. Step 6: Final answer
    x = 4,916.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.