Home / 11,008.64-15,179.90-8,181.27

Finding the Fourth Proportional to 11,008.64, 15,179.90 and 8,181.27

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Solution

The fourth proportional to 11,008.64, 15,179.90 and 8,181.27 is: 11,281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.64 : 15,179.90 = 8,181.27 : x
  2. Step 2: Convert to fraction form
    11,008.64/15,179.90 = 8,181.27/x
  3. Step 3: Cross multiply
    11,008.64x = 15,179.90 × 8,181.27
  4. Step 4: Simplify right side
    11,008.64x = 124,190,819.57
  5. Step 5: Solve for x
    x = 124,190,819.57/11,008.64
  6. Step 6: Final answer
    x = 11,281.21

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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.