Home / 11,315.90-16,974.24-3,524.78

Finding the Fourth Proportional to 11,315.90, 16,974.24 and 3,524.78

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Solution

The fourth proportional to 11,315.90, 16,974.24 and 3,524.78 is: 5,287.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.90 : 16,974.24 = 3,524.78 : x
  2. Step 2: Convert to fraction form
    11,315.90/16,974.24 = 3,524.78/x
  3. Step 3: Cross multiply
    11,315.90x = 16,974.24 × 3,524.78
  4. Step 4: Simplify right side
    11,315.90x = 59,830,461.67
  5. Step 5: Solve for x
    x = 59,830,461.67/11,315.90
  6. Step 6: Final answer
    x = 5,287.29

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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.