Home / 11,313.65-16,970.49-3,418.42

Finding the Fourth Proportional to 11,313.65, 16,970.49 and 3,418.42

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Solution

The fourth proportional to 11,313.65, 16,970.49 and 3,418.42 is: 5,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.65 : 16,970.49 = 3,418.42 : x
  2. Step 2: Convert to fraction form
    11,313.65/16,970.49 = 3,418.42/x
  3. Step 3: Cross multiply
    11,313.65x = 16,970.49 × 3,418.42
  4. Step 4: Simplify right side
    11,313.65x = 58,012,262.43
  5. Step 5: Solve for x
    x = 58,012,262.43/11,313.65
  6. Step 6: Final answer
    x = 5,127.63

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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.