Home / 11,855.60-17,783.40-3,090.52

Finding the Fourth Proportional to 11,855.60, 17,783.40 and 3,090.52

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Solution

The fourth proportional to 11,855.60, 17,783.40 and 3,090.52 is: 4,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,855.60 : 17,783.40 = 3,090.52 : x
  2. Step 2: Convert to fraction form
    11,855.60/17,783.40 = 3,090.52/x
  3. Step 3: Cross multiply
    11,855.60x = 17,783.40 × 3,090.52
  4. Step 4: Simplify right side
    11,855.60x = 54,959,953.37
  5. Step 5: Solve for x
    x = 54,959,953.37/11,855.60
  6. Step 6: Final answer
    x = 4,635.78

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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.