Home / 11,328.08-15,635.72-6,361.68

Finding the Fourth Proportional to 11,328.08, 15,635.72 and 6,361.68

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Solution

The fourth proportional to 11,328.08, 15,635.72 and 6,361.68 is: 8,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.08 : 15,635.72 = 6,361.68 : x
  2. Step 2: Convert to fraction form
    11,328.08/15,635.72 = 6,361.68/x
  3. Step 3: Cross multiply
    11,328.08x = 15,635.72 × 6,361.68
  4. Step 4: Simplify right side
    11,328.08x = 99,469,447.21
  5. Step 5: Solve for x
    x = 99,469,447.21/11,328.08
  6. Step 6: Final answer
    x = 8,780.79

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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.