Home / 11,180.46-15,428.43-6,464.64

Finding the Fourth Proportional to 11,180.46, 15,428.43 and 6,464.64

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Solution

The fourth proportional to 11,180.46, 15,428.43 and 6,464.64 is: 8,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,180.46 : 15,428.43 = 6,464.64 : x
  2. Step 2: Convert to fraction form
    11,180.46/15,428.43 = 6,464.64/x
  3. Step 3: Cross multiply
    11,180.46x = 15,428.43 × 6,464.64
  4. Step 4: Simplify right side
    11,180.46x = 99,739,245.72
  5. Step 5: Solve for x
    x = 99,739,245.72/11,180.46
  6. Step 6: Final answer
    x = 8,920.85

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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.