Home / 11,255.32-16,885.84-3,860.20

Finding the Fourth Proportional to 11,255.32, 16,885.84 and 3,860.20

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Solution

The fourth proportional to 11,255.32, 16,885.84 and 3,860.20 is: 5,791.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.32 : 16,885.84 = 3,860.20 : x
  2. Step 2: Convert to fraction form
    11,255.32/16,885.84 = 3,860.20/x
  3. Step 3: Cross multiply
    11,255.32x = 16,885.84 × 3,860.20
  4. Step 4: Simplify right side
    11,255.32x = 65,182,719.57
  5. Step 5: Solve for x
    x = 65,182,719.57/11,255.32
  6. Step 6: Final answer
    x = 5,791.28

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1.5x scale

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.