Home / 11,910.64-17,869.56-4,120.24

Finding the Fourth Proportional to 11,910.64, 17,869.56 and 4,120.24

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Solution

The fourth proportional to 11,910.64, 17,869.56 and 4,120.24 is: 6,181.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.64 : 17,869.56 = 4,120.24 : x
  2. Step 2: Convert to fraction form
    11,910.64/17,869.56 = 4,120.24/x
  3. Step 3: Cross multiply
    11,910.64x = 17,869.56 × 4,120.24
  4. Step 4: Simplify right side
    11,910.64x = 73,626,875.89
  5. Step 5: Solve for x
    x = 73,626,875.89/11,910.64
  6. Step 6: Final answer
    x = 6,181.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.