Home / 11,116.80-16,673.16-3,720.36

Finding the Fourth Proportional to 11,116.80, 16,673.16 and 3,720.36

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Solution

The fourth proportional to 11,116.80, 16,673.16 and 3,720.36 is: 5,579.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.80 : 16,673.16 = 3,720.36 : x
  2. Step 2: Convert to fraction form
    11,116.80/16,673.16 = 3,720.36/x
  3. Step 3: Cross multiply
    11,116.80x = 16,673.16 × 3,720.36
  4. Step 4: Simplify right side
    11,116.80x = 62,030,157.54
  5. Step 5: Solve for x
    x = 62,030,157.54/11,116.80
  6. Step 6: Final answer
    x = 5,579.86

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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.