Home / 11,185.05-16,782.14-5,640

Finding the Fourth Proportional to 11,185.05, 16,782.14 and 5,640

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Solution

The fourth proportional to 11,185.05, 16,782.14 and 5,640 is: 8,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.05 : 16,782.14 = 5,640 : x
  2. Step 2: Convert to fraction form
    11,185.05/16,782.14 = 5,640/x
  3. Step 3: Cross multiply
    11,185.05x = 16,782.14 × 5,640
  4. Step 4: Simplify right side
    11,185.05x = 94,651,241.40
  5. Step 5: Solve for x
    x = 94,651,241.40/11,185.05
  6. Step 6: Final answer
    x = 8,462.30

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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.