Home / 15,777.24-21,774.12-11,791.44

Finding the Fourth Proportional to 15,777.24, 21,774.12 and 11,791.44

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Solution

The fourth proportional to 15,777.24, 21,774.12 and 11,791.44 is: 16,273.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,777.24 : 21,774.12 = 11,791.44 : x
  2. Step 2: Convert to fraction form
    15,777.24/21,774.12 = 11,791.44/x
  3. Step 3: Cross multiply
    15,777.24x = 21,774.12 × 11,791.44
  4. Step 4: Simplify right side
    15,777.24x = 256,748,229.53
  5. Step 5: Solve for x
    x = 256,748,229.53/15,777.24
  6. Step 6: Final answer
    x = 16,273.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.