Home / 11,808.60-17,714.81-3,489.45

Finding the Fourth Proportional to 11,808.60, 17,714.81 and 3,489.45

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Solution

The fourth proportional to 11,808.60, 17,714.81 and 3,489.45 is: 5,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.60 : 17,714.81 = 3,489.45 : x
  2. Step 2: Convert to fraction form
    11,808.60/17,714.81 = 3,489.45/x
  3. Step 3: Cross multiply
    11,808.60x = 17,714.81 × 3,489.45
  4. Step 4: Simplify right side
    11,808.60x = 61,814,943.75
  5. Step 5: Solve for x
    x = 61,814,943.75/11,808.60
  6. Step 6: Final answer
    x = 5,234.74

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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.