Home / 11,942.85-17,918.03-9,319.32

Finding the Fourth Proportional to 11,942.85, 17,918.03 and 9,319.32

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Solution

The fourth proportional to 11,942.85, 17,918.03 and 9,319.32 is: 13,981.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.85 : 17,918.03 = 9,319.32 : x
  2. Step 2: Convert to fraction form
    11,942.85/17,918.03 = 9,319.32/x
  3. Step 3: Cross multiply
    11,942.85x = 17,918.03 × 9,319.32
  4. Step 4: Simplify right side
    11,942.85x = 166,983,878.64
  5. Step 5: Solve for x
    x = 166,983,878.64/11,942.85
  6. Step 6: Final answer
    x = 13,981.91

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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.