Home / 8,181.36-11,290.32-4,644.72

Finding the Fourth Proportional to 8,181.36, 11,290.32 and 4,644.72

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Solution

The fourth proportional to 8,181.36, 11,290.32 and 4,644.72 is: 6,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.36 : 11,290.32 = 4,644.72 : x
  2. Step 2: Convert to fraction form
    8,181.36/11,290.32 = 4,644.72/x
  3. Step 3: Cross multiply
    8,181.36x = 11,290.32 × 4,644.72
  4. Step 4: Simplify right side
    8,181.36x = 52,440,375.11
  5. Step 5: Solve for x
    x = 52,440,375.11/8,181.36
  6. Step 6: Final answer
    x = 6,409.74

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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.