Home / 11,183.85-15,433.07-6,878.58

Finding the Fourth Proportional to 11,183.85, 15,433.07 and 6,878.58

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Solution

The fourth proportional to 11,183.85, 15,433.07 and 6,878.58 is: 9,492.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,183.85 : 15,433.07 = 6,878.58 : x
  2. Step 2: Convert to fraction form
    11,183.85/15,433.07 = 6,878.58/x
  3. Step 3: Cross multiply
    11,183.85x = 15,433.07 × 6,878.58
  4. Step 4: Simplify right side
    11,183.85x = 106,157,606.64
  5. Step 5: Solve for x
    x = 106,157,606.64/11,183.85
  6. Step 6: Final answer
    x = 9,492.04

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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.