Home / 11,972.90-17,958.53-4,578.11

Finding the Fourth Proportional to 11,972.90, 17,958.53 and 4,578.11

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Solution

The fourth proportional to 11,972.90, 17,958.53 and 4,578.11 is: 6,866.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.90 : 17,958.53 = 4,578.11 : x
  2. Step 2: Convert to fraction form
    11,972.90/17,958.53 = 4,578.11/x
  3. Step 3: Cross multiply
    11,972.90x = 17,958.53 × 4,578.11
  4. Step 4: Simplify right side
    11,972.90x = 82,216,013.10
  5. Step 5: Solve for x
    x = 82,216,013.10/11,972.90
  6. Step 6: Final answer
    x = 6,866.84

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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.