Home / 11,769.42-17,656.32-3,872.40

Finding the Fourth Proportional to 11,769.42, 17,656.32 and 3,872.40

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Solution

The fourth proportional to 11,769.42, 17,656.32 and 3,872.40 is: 5,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.42 : 17,656.32 = 3,872.40 : x
  2. Step 2: Convert to fraction form
    11,769.42/17,656.32 = 3,872.40/x
  3. Step 3: Cross multiply
    11,769.42x = 17,656.32 × 3,872.40
  4. Step 4: Simplify right side
    11,769.42x = 68,372,333.57
  5. Step 5: Solve for x
    x = 68,372,333.57/11,769.42
  6. Step 6: Final answer
    x = 5,809.32

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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.