Home / 15,778.24-21,775.50-11,792.44

Finding the Fourth Proportional to 15,778.24, 21,775.50 and 11,792.44

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Solution

The fourth proportional to 15,778.24, 21,775.50 and 11,792.44 is: 16,274.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,778.24 : 21,775.50 = 11,792.44 : x
  2. Step 2: Convert to fraction form
    15,778.24/21,775.50 = 11,792.44/x
  3. Step 3: Cross multiply
    15,778.24x = 21,775.50 × 11,792.44
  4. Step 4: Simplify right side
    15,778.24x = 256,786,277.22
  5. Step 5: Solve for x
    x = 256,786,277.22/15,778.24
  6. Step 6: Final answer
    x = 16,274.71

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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.