Home / 11,181.60-15,440.40-6,996.96

Finding the Fourth Proportional to 11,181.60, 15,440.40 and 6,996.96

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Solution

The fourth proportional to 11,181.60, 15,440.40 and 6,996.96 is: 9,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.60 : 15,440.40 = 6,996.96 : x
  2. Step 2: Convert to fraction form
    11,181.60/15,440.40 = 6,996.96/x
  3. Step 3: Cross multiply
    11,181.60x = 15,440.40 × 6,996.96
  4. Step 4: Simplify right side
    11,181.60x = 108,035,861.18
  5. Step 5: Solve for x
    x = 108,035,861.18/11,181.60
  6. Step 6: Final answer
    x = 9,661.93

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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.